Rear Wheel Price EUR 845.99
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Reduced from EUR 1,057.48

HADRON Ultimate 625 Rim Brake

Optimum overall performance with the widest operational range, the HADRON Ultimate 625 is designed for both mountainous road riding as well as flat time trial / triathlon, with the perfect mix of low drag, high sailing effect and excellent handling for medium to high wind conditions. Available in both rim brake and disc brake versions, the HADRON Ultimate 625 aero wheels offer incredible all-around performance, whether on mountain passes or flat time trial courses. Full carbon clincher, tubeless ready construction. UCI approved.

Color options available:


Hadron Ultimate Decals

Brakes / Compability
Rim Depth
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Front Wheel
HADRON Ultimate Front Wheel Rim Brake / 485
EUR 692.17
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Reduced from EUR 865.21
Product available.
Rear Wheel
HADRON Ultimate Rear Wheel Rim Brake / 485
EUR 845.99
Save 20%
Reduced from EUR 1,057.48
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EUR 0
Total price for all items including VAT.
Total price for all items excluding VAT.
All products are shipped from our EU warehouse. Delivery to Germany is outside of the EU so 0% VAT is applicable. The local authorities may charge you VAT & import duties upon delivery.
Prices exclude shipping costs which are calculated at checkout.

Specs

Weight / Rim Front Wheel Rear Wheel Wheel Set Aero Profile Height Max. Rim Width Brake Track Width
HADRON Ultimate 485 Rim Brake
691g 838g 1529g 48.5mm 25mm 23mm
HADRON Ultimate 625 Rim Brake
724g 889g 1613g 62.5mm 27mm 23mm
HADRON Ultimate 800 Rim Brake
791g 936g 1727g 80mm 28mm 23mm
HADRON² DISC Rear Wheel Rim Brake
N/A 1090g N/A N/A N/A 23mm

Description

The world’s fastest aero wheels! Using the latest in aerodynamic and engineering development methods transferred from Formula 1, the HADRON Ultimate sets new benchmarks for aero wheel performance & quality. The HADRON Ultimates are designed for minimising the drag of the wheels but also on the bike & rider system. This is achieved by ensuring maximum aero stability and predictability in the wind so that the rider remains in their aero position for the maximum time. Tubeless ready full carbon construction rims, assembled with the world’s best DT Swiss 240S aero hubs with SINC ceramic bearings and with optimised aerodynamic shape in collaboration with Swiss Side. With wheel manufacture & assembly by DT Swiss for Swiss Side, the absolute highest possible Swiss precision, quality and durability is assured.

Compatibility

Shimano, SRAM 10&11 speed cassettes (standard). XDR Driver & Campagnolo compatible with freehub kits available separately.

Hub

DT Swiss 240s, custom for Swiss Side. Rim brake wheel hub/axle dimensions are: 5 x 100mm QR front / 5 x 130mm QR rear.

Disc Brake Interface: Disc Center Lock; Axle System as delivered: 12 x 100mm thru axle front; 12 x 142mm thru axle rear; Disc brake wheel hubs are also supplied with interchangeable end caps for the following axle configurations: 5mm x 100mm QR front axle; 5mm x 135mm QR rear axle.

For DISC Rear Wheel: DT Swiss 180 DICUT, 36T Ratchet EXP. Rim brake wheel hub/axle dimensions are: 5 x 130mm QR rear.

Spokes

DT Swiss Aerolite and Aero Comp Straightpull spokes with DT Swiss pro lock hidden aluminium nipples.
Front Rim Brake (radial pattern): 16 spokes (20 spokes for 485).
Rear Rim Brake (2:1 pattern): 21 spokes (24 spokes for 485).
Front Disc Brake (2-cross pattern): 24 spokes.
Rear Disc Brake (2-cross pattern): 24 spokes.

Bearings

  • SINC ceramic bearings
  • Made of extremely tough and wear- and corrosion-resistant ceramic material
  • Reduces rolling resistance to absolute minimum
  • Guarantees greater durability than conventional ball bearings

Additional Info

Shipping

  • Shipping costs are in addition to the pricing shown. Cost effective shipping is calculated based on your region at the checkout.
  • All products ship from our EU warehouse located in Poland and/or Germany.
  • For EU customers, all pricing shown includes local VAT. Courier delivery time is typically 3-5 days.
  • For international customers, including Switzerland and non-EU countries, all pricing shown is without VAT. Import duties and taxes (VAT) may be charged separately by your country’s authorities upon receiving your shipment. International delivery times vary depending on the shipping option chosen. Courier deliver is typically 3-15 days worldwide.
  • The Swiss Side HADRON² DISC Rear Wheel for Rim Brake is not for sale or use in the USA and/or Canada. Any orders will be cancelled.

Package Includes

Tubeless ready rim tape (pre-installed), Valve extension, Tubeless valve, QR skewers, Brake pads (SwissStop Black Prince Flash EVO).

For DISC Rear Wheel: Tubeless valve, valve spacer, valve cover patch, pump adapter, QR skewer, brake pads (SwissStop Black Prince Flash Pro), wheel bag.

Tyre Size

We recommend using a 23mm tyre on the front. If  additional comfort is desired, a 25mm tyre can be used  on the rear. We do not recommend tyres greater than 28mm width.

Rider Weight / Safety Notice

The maximum total system weight (bike + rider) for the HADRON Ultimate rim brake wheelset is 100kg (HADRON Classic rim brake is 105kg). Tyre pressures of 120psi should not be exceeded.

Wheel Spec Comparison

Profile Depth
i

HADRON Ultimate 485
6
HADRON Ultimate 625
8
HADRON Ultimate 800
9
HADRON² DISC Rear Wheel Rim Brake
10

Aero Drag
i

HADRON Ultimate 485
8
HADRON Ultimate 625
9
HADRON Ultimate 800
10
HADRON² DISC Rear Wheel Rim Brake
10

Aero Wind Stability
i

HADRON Ultimate 485
10
HADRON Ultimate 625
9
HADRON Ultimate 800
7
HADRON² DISC Rear Wheel Rim Brake
6

Weight
i

HADRON Ultimate 485
8
HADRON Ultimate 625
7
HADRON Ultimate 800
6
HADRON² DISC Rear Wheel Rim Brake
5

Stiffness
i

HADRON Ultimate 485
8
HADRON Ultimate 625
8
HADRON Ultimate 800
8
HADRON² DISC Rear Wheel Rim Brake
8

Drag Deltas for Wheel Combinations

Wind Tunnel Data measured on Canyon Speedmax CF SLX at 45km/h

Wheel Setup Front / Rear Drag (W) Difference* (W)
800 / DISC 57.10 -1.80
800 / 800 59.90 0.00
625 / 800 60.95 1.05
625 / 625 62.00 2.10
485 / 625 63.05 3.15
485 / 485 64.10 4.20

*Drag difference relative to the 'aero setup' - 800 / 800

Aero Performance Chart
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Wind Stability Chart
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Time Benefits

Speed Power Drag Reduction 40km 90km 180km
HADRON Ultimate 485
45km/h
35km/h
350W
180W
11.8W
5.6W
0m 40s
0m 50s
1m 30s
1m 52s
3m 00s
3m 44s
HADRON Ultimate 625
45km/h
35km/h
350W
180W
13.9W
6.5W
0m 47s
0m 59s
1m 47s
2m 12s
3m 34s
4m 24s
HADRON Ultimate 800
45km/h
35km/h
350W
180W
16W
7.5W
0m 55s
1m 08s
2m 03s
2m 32s
4m 06s
5m 04s
HADRON² DISC Rear Wheel / FW 800
45km/h
35km/h
350W
180W
17.8W
8.4W
1m 01s
1m 16s
2m 17s
2m 50s
4m 34s
5m 40s

*Drag reduction given relative to standard road wheel set.

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Wheel Mapping

Tyre of Riding Time Trial Road Racing Training Alps
HADRON Ultimate 485
HADRON Ultimate 625
HADRON Ultimate 800
HADRON² DISC Rear Wheel Rim Brake

Product Reviews

HADRON² Ultimate 625 Disc Brake - Bikeradar Review (Aug. 2021)

Robin Wilmott technical writer of Bikeradar tested the HADRON² Ultimate 625 wheel set for disc brake. Read entire review: HADRON² Ultimate 625 review on bikeradar.com (in English).

Verdict:

  • Fast and impressively stable wheels!
August 27, 2021

HADRON² Ultimate 625 Disc Brake - road.cc Review (January 2021)

road.cc website describes Swiss Side’s Hadron2 Ultimate 625 Disc as "the best bang-for-buck upgrade you can get" in its detailed review. They take a close look at the wheelset – from stability to tubeless setup to freehubs.

Their verdict: “Seriously impressive aerodynamic wheelset that delivers real-world speed and stiffness.”

The Hadron2 Ultimate 625 Disc wheelset was rated by road.cc with

  • 8 out of 10 points for quality of construction
  • 10 out of 10 points for performance
  • 8 out of 10 points for durability
  • 7 out of 10 points for weight
  • Value: “You're getting a lot here for your money.“
January 29, 2021

HADRON Ultimate 625 rim brake - RennRad review (July 2020)

Our HADRON Ultimate 625 rim brake wheels have been thoroughly tested as part of RennRad Magazine's most recent aero wheel test (issue Nr. 7). Available in German only. Download here.

Verdict:

  • Top acceleration
  • Great aerodynamics
  • Excellent lateral stiffness
  • Fair price
July 06, 2020