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:
CONFIGURE YOUR WHEELS
Specs
Weight / Rim | Front Wheel | Rear Wheel | Wheel Set | Aero Profile Height | Max. Rim Width | Brake Track Width |
---|---|---|---|---|---|---|
|
691g | 838g | 1529g | 48.5mm | 25mm | 23mm |
|
724g | 889g | 1613g | 62.5mm | 27mm | 23mm |
|
791g | 936g | 1727g | 80mm | 28mm | 23mm |
|
687g | 820g | 1507g | 48.5mm | 25mm | 23mm |
|
746g | 880g | 1626g | 62.5mm | 27mm | 23mm |
|
826g | 959g | 1785g | 80mm | 28mm | 23mm |
Description
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
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
Package Includes
Tubeless ready rim tape (pre-installed), Valve extension, Tubeless valve, QR skewers, Brake pads (SwissStop Black Prince Flash EVO)
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 25mm 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.
User Manual
Wheel Spec Comparison
Profile Depth
Aero Drag
Aero Wind Stability
Weight
Stiffness
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 / 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 'best aero setup' - 800 / 800 |
Aero Performance Chart

Wind Stability Chart

Time Benefits
Speed | Power | Drag Reduction | 40km | 90km | 180km | |
---|---|---|---|---|---|---|
|
45km/h 35km/h |
350W 180W |
11.8W 5.6W |
0m 40s
0m 50s |
1m 30s
1m 52s |
3m 00s
3m 44s |
|
45km/h 35km/h |
350W 180W |
13.9W 6.5W |
0m 47s
0m 59s |
1m 47s
2m 12s |
3m 34s
4m 24s |
|
45km/h 35km/h |
350W 180W |
16W 7.5W |
1m 00s
1m 12s |
2m 03s
2m 32s |
4m 06s
5m 04s |
*Drag reduction given relative to standard road wheel set. |
Wheel Mapping
Tyre of Riding | Time Trial | Road Racing | Training | Alps |
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Product Reviews

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
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