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November 17, 2014

SWISS SIDE HADRON PROJECT UPDATE 17 – English

 
TOUR Magazine Independent Testing Article

 
Swiss Side and the recently released Hadron 625 wheel set, are featured in a 4-page article of this month’s (October) edition of TOUR Magazine. TOUR is a German publication, which is Europe’s “Number 1” magazine and one of the world’s most respected. TOUR was supplied with one of the first production sets of Hadron 625’s, which were then subjected to a rigorous testing program, including wind tunnel testing, to independently verify that the Hadron 625 is indeed the leading aero wheel set in its class.
 
To pick up the English version of Tour Magazine and the Swiss Side Hadron Aero Wheel “Throwing Down The Gauntlet” article, go to your mobile device application store and search Tour Int (or go to www.tour-int.com for more information). The article is in the 22.10.2014 issue.

 

 

 
TOUR tested using their independent testing protocol, along with their own equipment including reference bike frame and dynamic leg dummy. The test took place on the Airbus base in the south of Germany at the GST wind tunnel. Note that Swiss Side and TOUR magazine use this same wind tunnel for their testing purposes.
 
The target of the test was to compare Hadron 625 against the current leading aero wheel sets on the market, including Zipp 404 FC, Mavic CXR60 and one of the industry’s benchmark aero wheels, the Zipp 808. The test was conducted at the industry standard 45km/h and with crosswind angles through the range from –20 to +20 degrees.
 
photo 1
 
As expected from Swiss Side’s ‘total transparency’ approach to publishing performance data, the Hadron 625 performance tested by TOUR, matched exactly the already published results from the extensively documented and published Swiss Side tests (see www.swissside.com/hadron).
 

The Hadron 625 is independently proven to be the leading
aero wheel in the 60mm depth category.

 
The top ‘Big Brand’ competitors against which the Hadron 625 was tested were Zipp 404 Firecrest and Mavic CXR60. Only the deeper (80mm) Zipp 808 is shown to offer a small 1.2% improvement in absolute drag numbers. (Note that the side force component of aero performance is not considered by the TOUR testing protocol, a point where the Hadron 625 has shown to offer a significant advantage over the Zipp 808).
 


If you haven’t followed the rest of the Swiss Side Hadron development process, catch up at www.swissside.com/hadron or click on the installment you are interested in below:

UPDATE 1- SWISS SIDE HADRON INTRODUCTION
UPDATE 2- SWISS SIDE HADRON INITIAL SPECIFICATION
UPDATE 3- HAVE YOUR SAY IN THE HADRON SURVEY
UPDATE 4- CFD (COMPUATIONAL FLUID DYNAMICS) OPTIMISATION
UPDATE 5- HADRON SURVEY INITIAL RESULTS
UPDATE 6- STRUCTURAL DESIGN & ANALYSIS
UPDATE 7- CFD OPTIMISATION RESULTS
UPDATE 8- HADRON GRAPHIC DESIGN SURVEY
UPDATE 9- WIND TUNNEL TESTING METHODS AND RESULTS
UPDATE 10- HADRON GRAPHIC DESIGN DECISION
UPDATE 11- FINAL HADRON SPECS, PRICING, & REGISTER YOUR INTEREST
UPDATE 12- HADRON PRE-ORDER NOW LIVE! -ORDER HERE
UPDATE 13- BACK TO THE WIND TUNNEL
UPDATE 14- ROAD TESTING FEEDBACK
UPDATE 15- 2014 EUROBIKE AERO WHEEL BATTLE
UPDATE 16- HADRON WINS IRONMAN WISCONSIN

Don’t forget to sign up to the Swiss Side update newsletter for further updates on the Hadron project! You can do so on the Hadron page: www.swissside.com/hadron
 

October 16, 2014

SWISS SIDE HADRON PROJECT UPDATE 17

 
TOUR Magazine Independent Testing Article

Swiss Side and the recently released Hadron 625 wheel set, are featured in a 4-page article of this month’s (October) edition of TOUR Magazine. TOUR is a German publication, which is Europe’s “Number 1” magazine and one of the world’s most respected. TOUR was supplied with one of the first production sets of Hadron 625’s, which were then subjected to a rigorous testing program, including wind tunnel testing, to independently verify that the Hadron 625 is indeed the leading aero wheel set in its class.
 
We have translated the key points of the article. However, stay tuned, as this article will be featured in TOUR International’s, English online publication in November. Read below how to get a copy of that publication when it comes out.
 

 
TOUR’s article begins with the following title:

“THROWING DOWN THE GAUNTLET”
“Aero wheels make you fast but are expensive and not always suitable for daily use. The new Swiss brand ‘Swiss Side’ wants to disprove both these points.
Swiss Side has developed a wheel which is supposed to be as aerodynamic as those of the best established competitor brands- but for half the price. We have verified this.”
 

TOUR tested using their independent testing protocol, along with their own equipment including reference bike frame and dynamic leg dummy. The test took place on the Airbus base in the south of Germany at the GST wind tunnel. Note that Swiss Side and TOUR magazine use this same wind tunnel for their testing purposes.
 
The target of the test was to compare Hadron 625 against the current leading aero wheel sets on the market, including Zipp 404 FC, Mavic CXR60 and one of the industry’s benchmark aero wheels, the Zipp 808. The test was conducted at the industry standard 45km/h and with crosswind angles through the range from –20 to +20 degrees.

 
As expected from Swiss Side’s ‘total transparency’ approach to publishing performance data, the Hadron 625 performance tested by TOUR, matched exactly the already published results from the extensively documented and published Swiss Side tests (see www.swissside.com/hadron).
 

The Hadron 625 is independently proven to be the leading
aero wheel in the 60mm depth category.

 
The top ‘Big Brand’ competitors against which the Hadron 625 was tested were Zipp 404 Firecrest and Mavic CXR60. Only the deeper (80mm) Zipp 808 is shown to offer a small 1.2% improvement in absolute drag numbers. (Note that the side force component of aero performance is not considered by the TOUR testing protocol, a point where the Hadron 625 has shown to offer a significant advantage over the Zipp 808).
 
To read all the details of the test, along with an interview with Jean-Paul Ballard, Swiss Side Technical Director, purchase this month’s (October) Edition of TOUR Magazine.
 
To read the English version in the November edition (8/2014), download the FREE TOUR Int. App at iTunes. You can preview all editions and they can be purchased individually for $2.99.

 
If you haven’t followed the rest of the Swiss Side Hadron development process, catch up at www.swissside.com/hadron or click on the installment you are interested in below:

UPDATE 1- SWISS SIDE HADRON INTRODUCTION
UPDATE 2- SWISS SIDE HADRON INITIAL SPECIFICATION
UPDATE 3- HAVE YOUR SAY IN THE HADRON SURVEY
UPDATE 4- CFD (COMPUATIONAL FLUID DYNAMICS) OPTIMISATION
UPDATE 5- HADRON SURVEY INITIAL RESULTS
UPDATE 6- STRUCTURAL DESIGN & ANALYSIS
UPDATE 7- CFD OPTIMISATION RESULTS
UPDATE 8- HADRON GRAPHIC DESIGN SURVEY
UPDATE 9- WIND TUNNEL TESTING METHODS AND RESULTS
UPDATE 10- HADRON GRAPHIC DESIGN DECISION
UPDATE 11- FINAL HADRON SPECS, PRICING, & REGISTER YOUR INTEREST
UPDATE 12- HADRON PRE-ORDER NOW LIVE! -ORDER HERE
UPDATE 13- BACK TO THE WIND TUNNEL
UPDATE 14- ROAD TESTING FEEDBACK
UPDATE 15- 2014 EUROBIKE AERO WHEEL BATTLE
UPDATE 16- HADRON WINS IRONMAN WISCONSIN

Don’t forget to sign up to the Swiss Side update newsletter for further updates on the Hadron project! You can do so on the Hadron page: www.swissside.com/hadron
 

September 23, 2014

THE SWISS SIDE HADRON 625 WINS AGAIN!

 
Invictus-Games-2
THE SWISS SIDE HADRON 625 WINS AGAIN
Andrew Perrin wins two gold medals in the Prince Harry backed Invictus Games.


Over 400 competitors from 13 nations take part in the Invictus Games, an international sporting event for wounded, injured and sick Servicemen and women. Teams come from the armed forces of nations that have served alongside each other. The Games use the power of sport to inspire recovery, support rehabilitation, and generate a wider understanding and respect of those who serve their country.
 
The event, which is championed by Prince Harry, is a celebration of resilience and passion. The Games shine a spotlight on Armed Forces personnel and veterans who have put their lives on the line for their country demonstrating how they and their families are valued, respected and supported. For competitors, it offers a memorable, inspiring and energising experience in their journey of recovery.
 
A newly-designed road circuit that loops around the Lee Valley VeloPark is the home of Road Cycling at the Invictus Games. A variety of time trial and road race events are included on solo and recumbent bikes.
 
Swiss Side customer Andrew Perrin who recently purchased a set of Hadron Aero wheels won the Sprint TT and Road Race at the Invictus Games receiving his medals from Prince Harry himself. Swiss Side caught up with Andrew for a little Q&A on his wins and this great event for a great cause.
 

 
“Andrew’s achievements at the Invictus Games are tremendous!” says Swiss Side Technical Director Jean-Paul Ballard. “It’s a great event for a great cause and we are really happy Andrew chose the Hadron 625s as his wheel set of choice and that they helped him secure his two victories at the Games! Thanks and congratulations from the Swiss Side team”
 
Q. SWISS SIDE:
First of all congratulations on your amazing results at the Invictus Games! Please tell us how the Games have played a part in your rehabilitation?

A. ANDREW:
My rehabilitation has been quite long and the Invictus was the pinnacle. Cycling has been my rehabilitation and has helped strengthen my body and rebuild and rehab the damaged parts. For me and the guys it has been an exciting 6 months with all the build up and, for some, has helped to take our minds off our problems and demons.
 
Q. SWISS SIDE:
How did you get to be a part of the British National Team for the Invictus Games?

A. ANDREW:
When I first heard about the Invictus Games, I signed up and had to go through a series of trials and camps. Our progress has been monitored through power tests and race simulations. Once we had been categorised, we then had to go through further trails which led me to become team leader in my category.
 
Q. SWISS SIDE:
When did you first get into road biking and what sparked your interest in the sport?

A. ANDREW:
I got into road biking after my injury which stopped me from doing any contact sports. I am quite competitive and this led me to join a cycling club and then a race team (Finchley Race Team in North London). Through my progression, my legs got stronger and helped with one of my injuries (ACL replacements). I am now an avid fan of cycling and love watching races on the TV and I managed to go and see some stages of the Tour last year in the Alps.
 
Q. SWISS SIDE:
What has your training program looked like for the Games?

A. ANDREW:
Because I am part of a race team anyway, my program has stayed very similar. I have raced British Cycling road races most weekends since around April after coming off a cyclocross winter season. I race the Circuit of the Fens Elite Road Race (which involved some serious off road sections that my Hadrons coped very well with). I train twice a week in the evenings and normally average 150miles a week. The British Team has also added to my training with some TT training and Crit training and a week in southern France to get some climbing/strength training.
 
Q. SWISS SIDE:
What races have you competed in?

A. ANDREW:
This year has been busy with the Eastern and Central League Cyclocross races at the beginning. Eastern Road Race League Road Races including the Circuit of the Fens. Also some crit races at the London circuits. This year I managed to get my Cat 3 and will look at progressing next year to Cat 2. I have had 3 wins (including Invictus) and a couple of top 5 finishes. My best finish in an elite race was 20th.
 
Q. SWISS SIDE:
2 Gold medals at the Invictus Games! You’ve got to be happy with that! Tell us about those races?

A. ANDREW:
So happy, the single lap TT was first, I was the last road bike competitor to go and I had to beat 2min11. In training I had done a 2min10 so felt confident. I remembered a friend who did track saying to start in a big gear to get up to speed and it really worked. I just put everything I had into the first half and just tried to hold on as long as possible, I ended up with a 2min8 which I was really happy with. The road Race was hard, a field of 35 started and we had a large team from Denmark that were looking to put the pressure on my. Myself and a teammate decided to attack from the go and he went early, forcing them to chase. I could see they were working hard to bring him back and when they did I just went over the top. We hadn’t planned to go so early (2 laps in) so I found myself on my own for the rest of the race. I got 30 secs and they started to pull me back but at the same time the group was losing riders so eventually it was just 2 chasing. At that point, I knew I was okay and got the gap back up to near 1min. It was the hardest 40mins I had done just trying to maintain a good pace and concentrate, but well worth it.
 
Q. SWISS SIDE:
You’ve been riding the Swiss Side Hadron 625 wheel set which you purchased in our very first product batch. From our side, thank you so much! Please share your feedback on the wheels.

A. ANDREW:
The wheels are amazing, they look like quality products and they roll so well. I find them extremely comfortable on our rubbish British roads. The best thing about these wheels is the sound. A great noise that you can hear coming and always gets comments from my team mates. I have let a few friends try them that ride on Mavics and Zipps and the best thing is the look of surprise on their faces when I tell them how much they cost. Unfortunately, I had a collision which took out a few spokes in a race a couple of weeks ago and caused the wheel to lock and scratched the lovely graphics. But, they are fixed now and running great!
 

 
Q. SWISS SIDE:
Nice picture of you and Prince Harry! It’s a great initiative from him. He seems like a cool guy. What is he like?

A. ANDREW:
He is a genuinely nice guy. He cares about us and has been the driving force behind the Games. He has been involved in all the planning and used his position and contacts to bring in some quality acts for the closing ceremony (Foo Fighters, Kaiser Chiefs etc). The public has been great and through the TV coverage and Harry’s role in that it looks like the Invictus Games is going to be a regular event, so I may have to defend my title!
 

September 15, 2014

SWISS SIDE HADRON PROJECT UPDATE 16

 
Hadron 625 wins Ironman Wisconsin
+
Hadron 625 is voted best value aero wheel set by Cycling Plus UK

 
HUGE NEWS!!! Swiss Side sponsored Pro-Ironman athlete Britta Martin WINS Ironman Wisconsin riding the Hadron 625 wheel set! She did this in dominant style setting the fastest time on the bike, over the very demanding hilly bike course. She crossed the line after the marathon over 11 minutes clear of her nearest rival. Britta was in the wind tunnel with the Swiss Side aerodynamics team, only one week before, optimizing her aero setup. Further concrete proof that the Hadron 625 wheel set can beat the worlds best… at less than half the cost price!
 

 
We caught up with Britta after the race for some Q&A to hear what she had to say:
 
Q. Swiss Side:
So how was your lead up to the race? You were in Europe with us in the wind tunnel just a week before!
 
A. Britta:
I was extremely nervous because the preparation was far from perfect. The non-existent European summer this year meant that training was very challenging this year. Riding 6 hours a day in the rain and cold makes it that much harder, especially if you are person who performs best the hotter it is! In addition I’ve had a running injury, which has limited the miles I’ve been able train. Could you believe I even considered cancelling the race!
 
Q. Swiss Side:
So how was the swim leg?
 
A. Britta:
It was a beautiful big lake and we took off right at sunrise. Swimming is my weakest discipline so I have been training it very hard. In the end I was quite happy to come out of the water only 6 minutes behind the leader.
 
Q. Swiss Side:
So tell us about the bike leg. It was a hilly stage which plays to your strengths and it was your first time riding the Hadron 625 in competition. Tell us all about it.
 
A. Britta:
It was a really tough bike course. 180km of nearly no flat and lots of hills. I felt really strong on the bike and pushed quite hard at the beginning. I was actually very surprised to catch the leader after only 30km. From that point I made sure to manage my pace and save some energy for the marathon.
As for the Hadrons, they were amazing! Their stability particularly at high speed and in crosswind gusts is just fantastic. Being such a lightweight athlete, I can get blown around quite easily but I have learnt in training that I can 100% trust the Hadron stability. For this reason I was able to remain in the aero position more than usual. Especially when you start going faster, you can just feel them thrusting you forwards and they feel very very fast! I love the noise as well. It makes you feel even faster! Actually was just told that I was only 2 minutes off the bike course record here! In hindsight I should have pushed a little more because I could have broken the record if I had known!
 
Q. Swiss Side:
How was the run? It seems you could manage the gap and even build on it. At which point did you know that victory was yours?
 
A. Britta:
I had the luxury to be able to start the run relaxed and slow. I knew I had a 5:30min gap and waited to see how the other girls would respond. I just got myself into a good rhythm and I was really happy to hear that I was actually increasing the gap. However you can never know in the marathon. The race really only starts with 20km to go so I just kept my head down and pushed. With 3km to go, I calculated that I could stop and walk and still win, so at that point I knew victory was mine!
 
Q. Swiss Side:
So how did it feel to cross the line for the win?
 
A. Britta:
It was just awesome. After the hard and challenging build up, I was just so unbelievably happy to pull off a race like this. I had to dig pretty deep, because the build up was not ideal. It is all so worth it now. Doing this sport, even though you race on your own, is a complete team effort. My team consists of my boyfriend, my coaches, my sponsors, family and a lot more people. They have invested a lot and put so much work into it over the years. Being able to give something back to them and thank them with a big race win like this, is very special and such a good feeling! Thanks so much to everyone!
 

 
FURTHER BIG NEWS! The UK’s leading cycling magazine ‘Cycling Plus’ named the Swiss Side Hadron 625 as the best value aero wheel set on the market. Once again the Hadron has proved itself to outpunch its weight against big brand wheel sets at over double the cost price.
 

 
The editor mentioned two ‘low’ points: 1. The loud carbon wheel sound; 2. The relatively small front bearings. To respond to these two points, the vast majority of feedback we’ve had from our customers and the comments visible on online forums, report that the carbon wheel ‘wooom wooom’ sound is loved by vast majority and is actually perceived as a positive selling point! What can we say… we love it!
Regarding the small front bearings, we can only confirm that the load ratings of the top-level quality Enduro bearings which we use in the front hub, by far surpass their requirements. This Swiss Side ‘Ultra’ hub model has also been on the road for the last two years in our Franc and Gotthard wheel sets without a single front bearing issue to report… Say no more!
 
Stay tuned for the further media reports which will be published in the coming weeks and months following hugely successful Swiss Side Eurobike Aero Wheel Battle event. First out will be the independent report in the October edition of Tour Magazine!
 
If you haven’t followed the rest of the Swiss Side Hadron development process, catch up at www.swissside.com/hadron or click on the installment you are interested in below:

UPDATE 1- SWISS SIDE HADRON INTRODUCTION
UPDATE 2- SWISS SIDE HADRON INITIAL SPECIFICATION
UPDATE 3- HAVE YOUR SAY IN THE HADRON SURVEY
UPDATE 4- CFD (COMPUATIONAL FLUID DYNAMICS) OPTIMISATION
UPDATE 5- HADRON SURVEY INITIAL RESULTS
UPDATE 6- STRUCTURAL DESIGN & ANALYSIS
UPDATE 7- CFD OPTIMISATION RESULTS
UPDATE 8- HADRON GRAPHIC DESIGN SURVEY
UPDATE 9- WIND TUNNEL TESTING METHODS AND RESULTS
UPDATE 10- HADRON GRAPHIC DESIGN DECISION
UPDATE 11- FINAL HADRON SPECS, PRICING, & REGISTER YOUR INTEREST
UPDATE 12- HADRON PRE-ORDER NOW LIVE! -ORDER HERE
UPDATE 13- BACK TO THE WIND TUNNEL
UPDATE 14- ROAD TESTING FEEDBACK
UPDATE 15- 2014 EUROBIKE AERO WHEEL BATTLE

Don’t forget to sign up to the Swiss Side update newsletter for further updates on the Hadron project! You can do so on the Hadron page: www.swissside.com/hadron
 

September 9, 2014

Swiss Side Pro-Ironman Athlete Britta Martin WINS Ironman Wisconsin

 
HUGE NEWS!!!
Swiss Side Pro-Ironman Athlete Britta Martin WINS Ironman Wisconsin riding the Hadron 625 wheel set! She did this in dominant style setting the fastest time on the bike over the very demanding hilly bike course, finally crossing the line after the marathon over 11 minutes clear of her nearest rival. Britta was in the wind tunnel with the Swiss Side team only a week ago, working on her aerodynamic setup. Further proof that the Hadron 625 can beat the world’s best (at less than half the cost price)!

Here is a link to the official Ironman press release with a photo of Britta at the finish:
http://www.ironman.com/triathlon/news/articles/2014/09/ironman-wisconsin-recap.aspx#axzz3ChQgBONE
 

September 3, 2014

SWISS SIDE HADRON PROJECT UPDATE 15

 
2014 Eurobike Aero Wheel Battle
Swiss Side invites leading international cycling media to challenge the Hadron!
 
As detailed in the previous 14 Hadron Updates, Swiss Side’s goal has been to leave no doubt to the bold claims that the Hadron 625 wheel set is as good or better than ANY top level ‘big brand’ aero wheel set on the market but at less than half the cost price! As a part of this drive, we have strived for total transparency by publishing all the details and performance data of the Hadron 625 wheel set development.

However, we understand the importance to the market to have independent endorsement and confirmation of this performance. Therefore to coincide with this year’s 2014 Eurobike (the biggest cycling show in the world each year), we at Swiss Side rented the GST Wind Tunnel facility, only 15km from the show and over 3 days, invited the industries leading international cycling media each to their own independent 1 hour wind tunnel test session where they could test any wheel of their choice against the Hadron 625.

The media groups included: Tour Magazine, Triathlon Magazine, Roadbike Magazine, Road Cycling UK, Bicycles Network Australia, Bike Radar & Cycling Plus. The guests were free to define exactly what to test and were able to observe the live aerodynamic performance data (namely drag and side force) for themselves. All the raw data was provided for the guest to take away at the end of the session to ensure no doubt as to the validity of the results.



We will allow the media groups to release the data in their own independent reports. However, we can proudly say that the Hadron 625 performance proved once again to be at the very top of the leaderboard amongst the ‘big brand’ models including: Zipp 808 Firecrest, Zipp 404 Firecrest, Durace C75, Mavic CXR60 and others, but very importantly, the Hadron 625 costs less than half the price! Furthermore, every single guest was very impressed by the performance of the Hadron 625 and also by the Swiss Side brand concept. Numerous groups commented that they too believed that it must have been possible to produce a top level performance aero wheel set for low cost and they have been waiting for someone to finally do this… Welcome Swiss Side!

In addition to the aero wheel battle, we also continued further extensive aerodynamic development work on prototype wheel models including a Hadron 625 brake disc wheel, as well as a shallower and deeper Hadron aero wheel models in development for 2015.

Swiss Side pro-Ironman triathlete Britta Martin also was in the wind tunnel for some rider optimization and performance mapping as part of the preparation for her 2015 campaign. Finally aerodynamicist James Eddison also took to the wind tunnel for some general aerodynamics studies as a part of Swiss Side’s research and development program.





Click here to view a slideshow of the Swiss Side 2014 Eurobike Aero Wheel Battle.

Stay tuned here for further updates as the independent media publications go live.
We can already report that Tour Magazine will be featuring a 4 page article on the Hadron and the wind tunnel battle in the October edition!

As we have written this update, the first of the online publication has gone live from Bicycles Network Australia.
Click here to read their independent report.





If you haven’t followed the rest of the Swiss Side Hadron development process, catch up at www.swissside.com/hadron or click on the installment you are interested in below:

UPDATE 1- SWISS SIDE HADRON INTRODUCTION
UPDATE 2- SWISS SIDE HADRON INITIAL SPECIFICATION
UPDATE 3- HAVE YOUR SAY IN THE HADRON SURVEY
UPDATE 4- CFD (COMPUATIONAL FLUID DYNAMICS) OPTIMISATION
UPDATE 5- HADRON SURVEY INITIAL RESULTS
UPDATE 6- STRUCTURAL DESIGN & ANALYSIS
UPDATE 7- CFD OPTIMISATION RESULTS
UPDATE 8- HADRON GRAPHIC DESIGN SURVEY
UPDATE 9- WIND TUNNEL TESTING METHODS AND RESULTS
UPDATE 10- HADRON GRAPHIC DESIGN DECISION
UPDATE 11- FINAL HADRON SPECS, PRICING, & REGISTER YOUR INTEREST
UPDATE 12- HADRON PRE-ORDER NOW LIVE! -ORDER HERE
UPDATE 13- BACK TO THE WIND TUNNEL
UPDATE 14- ROAD TESTING FEEDBACK

Don’t forget to sign up to the Swiss Side update newsletter for further updates on the Hadron project! You can do so on the Hadron page: www.swissside.com/hadron
 

July 3, 2014

SWISS SIDE HADRON PROJECT UPDATE 14

 
ROAD TESTING FEEDBACK
 
As mentioned in the Hadron Update 13, the production prototypes of the Hadron 625 have been out on the road testing for many months now. The primary target of this testing was to cumulate feedback from our test riders on the Hadron performance on all types of road courses and under all types of riding conditions. The testing has spanned the globe with our test riders taking to the roads in Switzerland, Australia, Italy, Germany, Spain and Sweden.


The performance of the Hadron 625 has been an eye opener to all riders, in particular the extremely low crosswind sensitivity and the immediately noticeable drag reduction. Here is a summary of the direct feedback from our test riders:


 
James Eddison.
Swiss Side development rider & F1 aerodynamicist.
“Great noticeable and stable performance with awesome sound!”
 
I have been riding a set of Hadron Prototypes in the Swiss Alps now for over a month, and I have to say I really like them. They are definitely quicker on the flat, they climb and accelerate well and feel solid on a mountain pass descent. Their performance in a crosswind is also remarkably good. I have ridden other deep section rims in the past and these surpass those. You still and will always feel side wind gusts due to the side force that any deep section wheel generates, but the Hadrons feel predicable, balanced and controllable. To top it off, they sound great too!

 


 
Björn Ullbrand.
Friend of Swiss Side – Sweden.
“I qualified for the World Triathlon Championships on the Hadron. Say no more!”
 
I ordered a set of Hadron’s in the original pre-order. Jean-Paul from Swiss Side, a good friend from our time together at the BMW-Sauber F1 Team, then offered to supply me with a set of production prototypes for testing as a part of my training regime for my Ironman campaign this year. He knew I would make a good test mule!

The wheels have been great and I really notice the performance gain. They make my Argon 18 fly!!! It was huge difference in terms of drag and stiffness compared to the standard wheels mounted on the bike when I bought it. Nice carbon sound too! No problems whatsoever so far. Particularly in strong winds, although you can feel the crosswind grab the wheel it is a pretty soft and undramatic feeling, even on my tri-bars in the aero position.

In this year’s Vättern Triathlon I managed to qualify for the 2015 Long Distance World Championships for my age group despite the most terrible conditions you could imagine. Cold with driving rain and very strong winds. Coming out of the transition the wheels sounded a bit strange as they had accumulated water inside from the heavy rain but this quickly went away as soon as I was riding, a good test for the water drainage hole. The Hadrons were fantastic as always, especially in the head winds. Even though it was really windy, the 62.5mm profile was totally manageable.

Now it’s off to Kalmar Ironman Sweden on the 16th of August. Looking forward to competing again with the Hadrons!

 


 
Christian Kleiner.
Swiss Side development rider & F1 aerodynamicist.
“Awesome aero performance and even an overall performance gain in the mountains!”
 
I’ve tested the Swiss Side Hadron wheels on lake Idro in Italy on my Cervelo R3SL. That’s an area where you would normally not expect to ride aero wheels because the terrain is very hilly with long and steep climbs over 1500hm of height difference. It’s also very windy along the lakes especially when the wind is picking up strongly from the south in the afternoon. It’s clear that aero wheels have an advantage on time trials or triathlons but would I prefer them to standard wheels also in the mountains? The other wheel set I had was a Swiss Side Heidi which I usually ride in the mountains as it a light and stiff wheel.

I did two rides with the Hadron wheels. The first one was 105km with 1500m of climbing including a few flat sections to see how the wheels performed on a typical bike ride in that area. The second ride was a climb over “passo di croce dominii” which included two long climbs and two long descents, in total 110km with 3400m of climbing where I was mainly interested if there is any disadvantage of riding these wheels in the mountains.

DAY 1:

Already after a few meters I realized that the handling of bike is different and especially the sound was noticeable as the surface of the tarmac was very rough. We’ve averaged almost 37km/h over the first 11km. The great sound of the wheels motivated me to go that pace and it just felt so easy. The first descent down to lake Garda was really interesting with the wheels as the wind changed direction quite often and I could test the crosswind influence on the wheels. There was a side force increase to the entire bike but it felt that the wheel was stabilizing this automatically. That descent included also a lot of fast S-corners. The bike was very stable and even more stable when I increased speed. I had a lot of confidence with the wheels on that descent because the whole bike was just so easy to control. Riding then along the lake was just perfect for the Hadrons as the aero benefit was noticeable with a head wind, which was constantly changing direction. I was on the front of the group and went faster and faster, averaging over 40kph. I could have gone faster again but I was a bit concerned that my mates would drop off my rear wheel and I that I might get a speeding fine, as one public speed indicator showed already 48kph! After that it was clear to me I could not do this with my other wheels. The Hadrons where just great and I also have to say that I enjoyed the fantastic sound of the wheels.

DAY 2:
Ride-2-Blog-Size
In the mountains of “passo di croce dominii”. This was a course where there’s no real benefit of an aero wheel but I was more interested in the stiffness of the wheels, which ultimately felt really good and did not disappoint. There’s really nothing to complain about it. What I really liked on the Hadron wheels was again the sound. I could hear the tension in the spokes especially when I got out of the saddle and increased speed. The carbon cover of the wheels is like a loudspeaker and this was motivating me on the whole climb. Descending on those wheels was also no problem as the brake surface is in aluminum and not in carbon as with most other good aero wheels on the marked. The aluminium braking surface is a huge advantage to me as it is much safer and also faster as you have better braking performance.

Summary:
After a week of cycling with the Hadrons, I’m convinced that these wheels are also an advantage over a standard wheel set in the mountains. The aero gain more than overcompensates for the small weight penalty. The wheels are stable, not critical in windy conditions and give very good brake performance on the descents.

 


 
Dr Seamus Mullarkey.
Friend of Swiss Side & F1 Aerodynamics Guru.
“The Hadrons transformed my bike and I’ve got the data to prove it!”
 
Being involved in the wind tunnel testing of the Hadrons, I was itching to get a set on my bike. I was interested to see how an average rider like myself would feel the benefit. The difference on fitting the Hadrons was truly surprising. The speed on the flat and the downhill with no wind was clearly faster but the biggest difference was in windy conditions – the Hadrons transformed the bike, allowing it to slice through the wind at a much higher speed. All this was backed up with GPS data, which is very important for data enthusiast like myself!
As well as the speed benefit, the bike was still easy to handle in the wind – and looked great too.

 


 
Bicycle Network Australia.
Independent Test & Review.
“I know I shouldn’t be so surprised, but it is hard to deny. A good set of aero wheels makes a difference even at modest speeds, and the faster you go the better it gets.”
 
Read this detailed independent test here:
www.bicycles.net.au/2014/06/bicycle-accelerator-swiss-side-hadrons-review/

 



 
If you haven’t followed the rest of the Swiss Side Hadron development process, catch up at www.swissside.com/hadron or click on the installment you are interested in below:

UPDATE 1- SWISS SIDE HADRON INTRODUCTION
UPDATE 2- SWISS SIDE HADRON INITIAL SPECIFICATION
UPDATE 3- HAVE YOUR SAY IN THE HADRON SURVEY
UPDATE 4- CFD (COMPUATIONAL FLUID DYNAMICS) OPTIMISATION
UPDATE 5- HADRON SURVEY INITIAL RESULTS
UPDATE 6- STRUCTURAL DESIGN & ANALYSIS
UPDATE 7- CFD OPTIMISATION RESULTS
UPDATE 8- HADRON GRAPHIC DESIGN SURVEY
UPDATE 9- WIND TUNNEL TESTING METHODS AND RESULTS
UPDATE 10- HADRON GRAPHIC DESIGN DECISION
UPDATE 11- FINAL HADRON SPECS, PRICING, & REGISTER YOUR INTEREST
UPDATE 12- HADRON PRE-ORDER NOW LIVE!
UPDATE 13- BACK TO THE WIND TUNNEL

Don’t forget to sign up to the Swiss Side update newsletter for a chance to win a set of Hadrons! You can do so on the Hadron page: www.swissside.com/hadron
 

June 4, 2014

Swiss Side together with BMC offer future Formula 1 star Simona De Silvestro the ultimate road bike.

 
Swiss Side together with BMC Switzerland offer future Formula 1 star and Sauber F1 affiliate driver, Simona De Silvestro the ultimate road bike to support her rigorous training regime.
A BMC Impec road frame matched with the new Swiss Side Hadron 625 aero wheel set.
Swiss Side is very proud to support Simona in her mission to be the first female driver of the modern Formula 1 era.


Jean-Paul Ballard with BMC CEO David Zurcher and Simona De Silvestro at the BMC Impec factory in Switzerland.
 

Simona alongside her Sauber C31 car.
Note that Swiss Side technical director, Jean-Paul Ballard, was one of the leading engineers responsible for the Sauber C31 car design.
 

May 6, 2014

SWISS SIDE HADRON PROJECT UPDATE 13

 
BACK TO THE WIND TUNNEL
 


SWISS SIDE HADRON secures its place at the top of the leader board, OUT-PERFORMING the best ‘big brand’ aero wheels! …


 
Swiss Side has been back to the wind tunnel with the production specification Hadron wheels. The purpose of the test was three fold:
1. To confirm the aerodynamic performance of the production Hadron wheels.
2. To conduct further tyre aerodynamic testing following the interesting trends seen in the previous wind tunnel test session (http://www.swissside.com/853).
3. To put the Hadron up against further top-level ‘big brand’ competitor wheel sets in the search of a wheel that can match the Swiss Side Hadron’s aerodynamic performance.

In conclusion, the final production specification Hadron wheels were taken to the mountain passes of the Swiss Alps for testing and rider evaluation on the road.


 


 
1. PRODUCTION WHEEL AERODYNAMIC PERFORMANCE CONFIRMATION

1.1 Performance Confirmation Test Method:

Before launching into the production phase of Swiss Side’s new Hadron wheel set, it was important to take the final production specification wheels to the wind tunnel to confirm their aerodynamic performance. In addition, some further fine details were evaluated. The run list for this part of the test looked as follows:

A) Hadron prototype vs production spec wheel.
B) Spoke holes open / closed. (There are small clearance holes around the spokes passing through the non-structural cover. The effect of this was measured).
C) Soft / stiff cover laminate. (Various carbon cover laminates were considered ranging from very stiff to very soft. The difference was the weight. Therefore any aerodynamic differences between soft and stiff covers were quantified).
D) High-speed test on the production laminate to check for any irregularities in aerodynamics performance.

The confirmation testing was done using a front wheel only. As detailed in the Hadron wind tunnel testing methods report (http://www.swissside.com/853), the ‘front wheel standalone’ configuration offers the best resolution for evaluating and comparing the individual wheel characteristics. The results are consistent with those measured on complete bike frames, with or without dynamic dummy legs. This choice of testing method was important for this round of testing as the differences in the aerodynamic forces between the configurations tested was expected to be quite small. Therefore maximum resolution was required. The testing speed was the same as in all our wind tunnel tests, namely 45km/h.




1.2 Performance Confirmation Test Results:

A) The results showed that the performance of the production specification wheels exceeded that of the prototype wind tunnel wheels built with rapid-prototype (3D printed) covers.

B) Taping closed the spoke holes offers a very small benefit. Therefore for final production, the spoke clearance holes were reduced to the minimum.

C) The laminate stiffness had a slight influence only at the high yaw (cross-wind) angles where the side force is at it’s highest. The ultra-light laminate showed to be at a slight detriment, therefore the intermediate laminate weight was chosen for production (+15g per wheel).

The graphs below show the results. All wheels were tested with the identical reference tyre, which was also used in the previous wind tunnel test- Continental GP 4000s. The production spec wheel is the blue curve, although it should be noted that in final production the spoke clearance hole size has been reduced which will close the gap to the taped hole run shown in green.





d) The final part of the performance confirmation testing was the high-speed evaluation. The maximum speed was limited by the maximum possible wheel roller speed. This was 75km/h. The yaw angle was also limited to 16 degrees as higher angles are unrealistic at this speed. The Hadron production wheels were then tested under these conditions to ensure that there were no unexpected aerodynamic characteristics. There were not. Indeed, the performance characteristic was identical as at the lower speeds, except with the separation point delayed beyond 16 degrees. This is consistent with what is expected aerodynamically at higher speed.
 
2. TYRE AERODYNAMICS

2.1 Tyre Aerodynamics Test Method:

From the first wind tunnel test, interesting trends were observed between smooth wall and rough wall / textured tyres. The best tyre from the first test was the Continental GP4000S. Furthermore, the effect of tyre shape, in particular wider tyres and used tyres was evaluated.

The Hadron has been extensively developed in CFD to have a reduced sensitivity to tyre shapes, as well as to minimize any impact of the steps between tyre & rim and between braking surface & rim aero cover. (See CFD report- http://www.swissside.com/735). This robustness was further evaluated as a part of the tyre test, by testing different widths of an identical tyre model.

The clincher tyres tested were:
1. Continental GP4000S (reference tyre).
2. Continental Grand Prix-TT (GP-TT)
3. Continental Grand Prix-23mm (GP-23)
4. Continental Grand Prix-25mm (GP-25)
5. Continental GP4000S used (≈10’000km)

Tyres 1 – 3 above were tested to evaluate the effect of sidewall roughness / texture.

Tyres 3 & 4 were tested to evaluate the effect of tyre width using an identical tyre model (construction & tread).

Tyre 5 (used) vs. Tyre 1 (new) was chosen to evaluate the effect of local changes to the tyre shape. Note that the used tyre has a slightly squared off top due to the wear.

Two of the ‘big brand’ competitor wheel sets tested also had their own custom tyres installed (tubular tyres in this case). In these cases, direct ‘same tyre’ comparisons with these wheels were not possible.


 

2.2 Tyre Aerodynamics Test Results:

The results confirmed the trends and observations from the first wind tunnel test. Most importantly:

Tyre sidewall roughness / texture plays a very important part in wheel aerodynamics.

The reason for this is due to ‘boundary layer’ effects. The boundary layer is the layer of air near the surface of an object. Directly on the surface, the flow velocity is zero and the thickness of the boundary layer is given by when the flow velocity reaches 99% of the freestream.


There are two types of boundary layer, laminar & turbulent. The laminar boundary layer remains thin and in discrete layers. Eventually this transitions to a turbulent boundary layer in which the flow is mixing through the thickness. The laminar boundary layer remains as a thin sub layer below the turbulent layer. The turbulent boundary layer is more tolerant to separation because it is energized by high-energy freestream flow, which is drawn in and mixed into the boundary layer.

The tyre plays a critical part in the wheel aerodynamic system, because it forms the leading edge at the front of the wheel. The tyre surface has a tight radius of curvature on shoulder. The airflow here is stressed very highly and can easily separate from the surface (like stall on an aircraft wing). Therefore it is important that the boundary layer is turbulent in this region to make it more robust to separation. It is possible to control the transition point from the laminar to turbulent boundary layer. This is known as boundary layer tripping. On the tyre, this is done with sidewall roughness / texture.

Boundary layer tripping is very important in wheel aerodynamics.

The tyre shoulder shape is also important, because reducing its radius of curvature also reduces the stress on the airflow. However it is of secondary importance to the boundary layer tripping.

Note that this is no different in the world of Formula 1 aerodynamics and is a known challenge within these circles. Swiss Side’s hugely experienced aerodynamics team is well used to dealing with this issue, because F1 tyres, in particular F1 wind tunnel model tyres play a primary role in aerodynamic development.

One of the key tasks of this wind tunnel test session was to evaluate the level of sidewall texture required to trip the boundary layer. It was already established that the aerodynamic performance of completely smooth sidewall tyres is very poor regardless of shape, due to the prolonged laminar boundary layer and in turn, early separation of the flow. However in contrast, the GP4000S with its level of sidewall texture successfully trips the boundary layer.

The GP-TT tyre was selected for evaluation as it had only a mild roughness on the tyre sidewall. However as can be seen in the graphs below (light blue line), this was not adequate for tripping the boundary layer and resulted in early separation characteristics. Note that this was also the case on all wheels tested.




The Continental Grand Prix tyres in both widths- GP-23 (Dir-2) & GP-25 in the graph, offered an improvement over the GP4000S (23mm wide), bringing the Hadron to a new even higher level of performance again! The aerodynamic performance of the GP Tyre in both the 23mm and 25mm widths was almost identical, with only the expected deviation in characteristic occurring around the separation point. Furthermore, the GP4000S also shows almost identical performance to the GP tyres, again with the only changes occurring at the critical separation point. Therefore…

This confirms the Hadron’s tolerance to different tyres shapes.

However an interesting discovery was made with the GP tyres. These tyres have a directional tread pattern with some directional channeling. Therefore it was decided to test this tyre in both rotational directions (Dir-1 & Dir-2 in the graphs) to see any influence on the results, in particular in the separation point. Interestingly the reverse direction (Dir-1) offered the best aerodynamic performance. This is clearly linked with the boundary layer tripping, indicating that the reverse direction tread better energizes the turbulent boundary layer. This indicates that there is even more potential in further delaying the separation point with tyre sidewall texturing and will be further investigated in future wind tunnel tests with more tyre models.
 
3. FURTHER COMPETITOR COMPARISON

3.1 Competitor Comparison Test Method:

As reported in the previous wind tunnel test report (http://www.swissside.com/853), the Hadron achieved better performance than the industry benchmark aero wheel. So the search was extended to find a wheel which could outperform the Hadron. Absolute top specification (and very expensive) ‘big brand’ wheel sets were selected for the challenge.

Where possible, all competitor wheels are tested with the identical GP4000S reference tyre used by Swiss Side for all comparisons. However in this case, two of the competitor wheel models tested were tubular wheels and came pre-installed with their own custom aero tyres. Note that these tyres also had sidewall texturing, clearly designed for boundary layer tripping. (See tyre photos above).

The top spec ‘big brand’ competitor wheel specifications tested were:
• Competitor 1 – 60mm deep x 27mm wide carbon tubular wheel. -Custom tyre with blending strip from tyre to rim.
• Competitor 2 – 58mm deep x 25.3mm wide carbon clincher wheel. -GP4000S reference tyre.
• Competitor 3 – 50mm deep x 24mm wide carbon clincher wheel. -GP4000S reference tyre.
• Competitor 4 – 75mm deep x 24mm wide carbon tubular wheel. -Custom tyre.
 

3.2 Competitor Comparison Test Results:

So how did the Hadron stand up to this latest battle?

With reference to the following performance graphs, only one wheel was found which could put up a proper fight. That was the ‘Competitor 1’, a full carbon tubular wheel with custom aero tyre and a (heavy) aerodynamic blending strip to smooth the gap between the braking surface and the tyre. Admittedly, its performance was superior in the low yaw (cross-wind) angle range, however the Hadron was significantly stronger in the mid to high yaw ranges with it’s best tyre, the GP-23. Considering side force, although the Hadron and ‘Competitor 1’ showed very similar performance in the low yaw angles, ‘Competitor 1’ however showed improved (lower) side force characteristics at the higher yaw angles.

Very close results then but which wheel won the fight?…

Overall, the Hadron won the drag battle, however ‘Competitor 1’ won the side force battle. So overall the performance can be said to be very similar. However, when considering the cost price…

The cost price of the Hadron is less than HALF it’s nearest competitor.

The Hadron maintains its position at the top of the leaderboard.




The Swiss Side team understands that these are bold claims that the Hadron has outperformed all the competitor aero wheels tested to date. Therefore consistent with the Swiss Side brand approach of offering complete transparency to their fans and cyclists alike, along with their total confidence in the Hadron wheel performance, Swiss Side will host a wind tunnel test during the 2014 Eurobike week and will be inviting media editors to bring any wheel set along to put up against the Hadron.

This will be a David vs Goliath battle of the market leading aero wheels!

The test will be run in a fully independent and transparent manner. All wheels will be tested in the same conditions, with the same tyres (where possible) and the data will do the talking and be made public by the press to all.
 
4. PRODUCTION WHEEL ROAD TESTING

The final part of evaluation for the production specification Hadron wheels was out on the road. Swiss Side has the luxury of the ideal testing ground at the front door… the Swiss Alps. As detailed in the previous structural design update (http://www.swissside.com/653), the original Hadron prototype wheels have been out on the road accumulating mileage since mid 2012 without any issues. So from a structural integrity evaluation standpoint, this milestone was already complete.

The main purpose of road testing was to evaluate the rider feel to the wheels, particularly in windy conditions. Furthermore, checks for rattles, whistling, or other unexpected noises were done. Some of the roughest and toughest mountain passes were chosen for testing, ensuring that all types of road surfaces were tested. At the same time the Hadrons were tested at both very low speed on long climbs, as well as at absolute top speed on steep descents.

All the riders who have ridden the Hadrons to date cannot fault them. Particularly in gusty wind conditions the wheels perform phenomenally without any overpowering or off-putting side force or steering inputs to unsettle the rider.

With absolute industry leading aerodynamic performance, aluminium braking surfaces, light weight and clincher construction, the Hadron is an unbeatable wheel set!


Members of the Swiss Side Aerodynamics Team testing the Hadron production wheels back-to-back with Gotthard wheels.
 
 
Further photo and video:

A photo gallery of the Swiss Side wind tunnel test can be viewed here:
http://www.swissside.com/hadron/hadron-wind-tunnel-test-photos

Video of the Swiss Side wind tunnel test can be viewed here:
http://www.swissside.com/hadron/hadron-wind-tunnel-testing
 
NEXT UP…

Stay tuned for our next updates:

‘Independent Media Reviews.’
The first production Hadron wheels are on their way to the media for independent review.

If you haven’t followed the rest of the Swiss Side Hadron development process, catch up at www.swissside.com/hadron or click on the installment you are interested in below:

UPDATE 1- SWISS SIDE HADRON INTRODUCTION
UPDATE 2- SWISS SIDE HADRON INITIAL SPECIFICATION
UPDATE 3- HAVE YOUR SAY IN THE HADRON SURVEY
UPDATE 4- CFD (COMPUATIONAL FLUID DYNAMICS) OPTIMISATION
UPDATE 5- HADRON SURVEY INITIAL RESULTS
UPDATE 6- STRUCTURAL DESIGN & ANALYSIS
UPDATE 7- CFD OPTIMISATION RESULTS
UPDATE 8- HADRON GRAPHIC DESIGN SURVEY
UPDATE 9- WIND TUNNEL TESTING METHODS AND RESULTS
UPDATE 10- HADRON GRAPHIC DESIGN DECISION
UPDATE 11- FINAL HADRON SPECS, PRICING, & REGISTER YOUR INTEREST
UPDATE 12- HADRON PRE-ORDER NOW LIVE!

Don’t forget to sign up to the Swiss Side update newsletter for a chance to win a set of Hadrons! You can do so on the Hadron page: www.swissside.com/hadron

April 15, 2014

HADRON AERO WHEELS – ON SALE NOW!