We ship worldwide using a renowned international courier service. Except the Swiss Side HADRON² DISC Rear Wheel for Rim Brake, which is not for sale or use in the USA and/or Canada. If your country is not offered as an option on our website, please contact us for further information.

Shipments to Canary Islands (in Spain):
Due to high courier costs of shipping to specific remote destinations, additionally surcharges may apply. Normal shipping costs to Spain do not apply to the Canary Islands. If you would like to have your wheels sent to the Canary Islands, please contact us. We will look at all shipping options and provide you with a separate offer.

Albania, Andorra, Austria, Belarus, Belgium, Bosnia and Herzegovina, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Great Britain, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Moldavia, Monaco, Montenegro, Netherlands, North Macedonia, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine

Free shipping above € 500 does not apply to Norway, San Marino, Malta, Cyprus, the Canary Islands, Azores.

We have negotiated best possible rates on all shipments with our international courier. Delivery costs are calculated and added automatically on checkout. If your country is not listed on our website, please contact us for further information.

EU: All prices for EU Countries include VAT and are shipped from our Global Warehouse (Poland, therefore no custom duties). When items are out of stock in our Global warehouse, we will inform you as your package will be shipped from our Swiss-based warehouse - EU customers will pay import VAT and duties on delivery then.

CH: Prices for Swiss Customers will include 8.1% VAT and goods will be shipped from our Swiss-based warehouse.

Rest of the world: For all sales outside of the EU/CH (incl. United Kingdom), prices will automatically be shown without VAT at the checkout. Import duties and taxes will be paid on delivery.

Within 24-48 hours your order will be processed and forwarded to the appropriate warehouse. 

Our warehouse team picks and packs your items and it is prepared for shipment (usually UPS). This step typically takes another 24-48 hours (Turnaround times may vary slightly depending on the day of the week, bank holidays, or the volume of orders we are receiving).

You can expect 2 - 4 working days between placing your order to when it ships from our warehouse. 

Your order is handed over to the carrier. After collection from our warehouse by the carrier, delivery will typically take 48 hours within continental Europe and up to 2 weeks internationally.

For deliveries within the EU, you should expect to receive your products within a week of ordering.

The HADRON aero wheels are aerodynamically superior through Swiss Side's unequaled aerodynamic development methods. We bring the latest technologies, top-level engineering know-how, and people together to ensure the highest level of Swiss Side’s engineering capability and to produce an unrivaled product at a competitive price point.

„We push the boundaries of design, construction, materials and aerodynamics to bring cycling wheels into a new era.”

We offer real technologies only. No gimmicks, only relevant, real performance technologies, backed up by real date, proven to make you faster!

Swiss Side HADRON aero wheels are available to buy online here.

We also have a select few retail partners who stock our wheels. You can find all retailers here.

All our wheels have hooks (except GRAVON 420) because it is safer and the tyre can not come off easily.

Hookless run with wider tyres, but are slower in every aspect.

The 650/650 or 680/680 and 550/550 combinations are recommended for road riding. For hilly and changing wind conditions, the 550/550 offer more wind stability at the cost of some aero performance. Overall, the fastest solution for the most hilly races is the 650 or 680 set. “Aero is King/Queen!”

The HADRON³ Ultimate and Classic 850 are recommended only for time trial and triathlon. The combination of a 650 or 680 (front) and 850 (rear) setup is the most recommended for any wind conditions or for those athletes who are sensitive to the wind. At an extreme, the combination of a 550 and 850 setup can also be applied for very challenging wind conditions for very lightweight riders.

Yes, our wheels are UCI-legal.

Exception: With the new UCI ruling as of 01.01.2026, the HADRON³ Ultimate 680 is no longer legal for UCI road racing.

Our wheels are 700cc which is the standard road bike wheel size. Provided you have a standard-sized road bike, then our wheels will fit your bike.

It's important to know that brakes only overheat and potentially cause a blowout if they are continuously and excessively engaged for a prolonged period. You probably are aware that proper braking involves applying them and then releasing gradually, repeating this process throughout the entire descent. Most blowouts occur when the rim overheats due to sustained braking.

You cannot damage the rim by braking; what matters is that during a descent, you avoid constantly keeping the brakes engaged, which would overload the rim.

Disc brake wheels do not come with the lock nut (= disc brake rotor) nor the lock ring, because this is specific to the bike.

The hubs are identical except for the rear hub internals. The hub outer shapes are identical. However, the Swiss Side rear hub internals use the ratchet system rather than the DT Swiss EXP system. We do this to save costs for the end customers, without loss in actual performance.

We are not able to produce wheels for small individuals/bikes, such as 26 or 27.5 inches, for example.

No. All Swiss Side wheels are 700c/622/28 inch.

We are not able to provide you with custom sizes or other cycling wheel sizes.

Also considered is the fluid transition from tyre to rim, which is crucial from an aerodynamic perspective.

The HADRON² All-Road features a wider inner rim width of 22mm and is optimised for 28mm to 32mm tyres.

The HADRON³ Ultimate or Classic wheels have an inner rim width of 22mm and are optimised for 25mm and 28mm tyres.

Ultimately, it depends on the tyre sizes and road surfaces you plan to use your wheels on.

If you mainly ride on the road with 25mm to 28mm tyres, the HADRON³ Ultimate or Classic 550 is the right choice.

However, if you plan to ride on various road surfaces (such as gravel) and prefer a minimum tyre size of 28mm, then the recommendation would be the HADRON² All-Road Ultimate 450.

If you believe the wheels you received are defective or do not conform to the agreed specifications, please visit our Returns & Refunds page.

Tyre sizes of up to 64mm are possible, but we advise using tyre sizes between 25mm to 32mm. Our recommended tyre setups are as follows:

• For maximum overall performance: 25mm front and rear, with the option of 28mm on the rear for additional comfort. In general, we recommend this setup for average speeds of 25km/h or higher.
• For increased comfort and for example, in training: 28mm front and rear.
• We recommend 8 bar tyre pressure for 25mm tyres and 6bar pressure for 28mm tyres; however, the maximum tyre manufacturer pressure should be respected and not exceeded.

First, make sure the rim tape is intact and sealed to the rim bed. So there should be no holes, folds, or tears in the tape, especially around the spoke holes. Secondly, check that the tubeless valve is seated well and fastened (not too tight) in place. Then, regarding the tyre itself, it is important to lubricate the tyre bead and the rim bed with either some soapy water or some tubeless milk when mounting. Then push the tyre bead out of the rim well (the sunken centre part of the rim) as much as possible before inflating. Normally, this will be more than enough to get the tyre to seat, even without a compressor.
If all this fails, the tyre tolerances are probably too far on the loose side. To solve this, a second layer of tubeless tape will tighten the assembly and do the trick.

Tyre pressures of 120psi should not be exceeded. The maximum permitted system (bike and rider) weights are:

• HADRON/HADRON²/HADRON³ Ultimate Disc Brake: 110kg
• HADRON Ultimate Rim Brake: 100kg
• HADRON Classic Rim Brake: 105kg
• HADRON Classic Disc Brake: 115kg

When you order the SINC Ceramic Bearings Upgrade Kit, you will receive a user manual with information on how to install and use the component, as well as how to maintain the component.

We do not recommend to transfer the bearings from one freehub to a other. You can transfer the Shimano Freehub to the XDR Freehub, but we do not recommend it. Firstly, you are very likely to damage the bearings since they are generally pressed into the Freehub during manufacturing. Secondly, from a performance perspective, you won't gain any advantages by doing this. The only benefit of ceramic bearings is their longer lifespan.
If you intend to upgrade your standard freehub without ceramic bearings, we recommend purchasing a new freehub instead.

Please find the instructions to apply the decals here.

You'll also find a video here.

Mounting tubeless tyres, such as the Continental Aero 111 or GP5000 STR, can be more challenging compared to traditional tube-type tyres due to the tighter tolerances required for reliable tubeless use. These precise tolerances are necessary to ensure a secure seal and optimal performance, which makes the tyres harder to mount.

Tube-type tyres, like the Continental GP5000, are easier to mount because they have a lighter and more flexible construction. In the past, it was possible to mount tyres without the use of tyre levers. However, with the rise of tubeless technology, tyre levers have become essential for mounting tubeless tyres.

If you’re finding it difficult to mount the tyres, it’s likely due to attempting to do it by hand without tyre levers. We recommend using tyre levers to make the process easier and to ensure the tyre is seated correctly.

If you believe the products you received are defective or do not conform to the agreed specifications, please visit our Returns & Refunds page.

• Wash at 30°C (max. 40°C)
• Do not bleach
• Do not tumble dry
• Low iron
• Do not dry clean

Note: Using Hydrogen peroxide should restore the products to their original whiteness. Please use caution, as higher concentrations may damage elastane and reduce durability.

Please avoid any alkaline or oxidizing products, as they may compromise the technical fabrics.

If you believe the textile product you received is defective or does not conform to the agreed specifications, please visit our Returns & Refunds page.

If you believe the cockpit you received is defective or does not conform to the agreed specifications, please visit our Returns & Refunds page.