Front Wheel Price EUR 524.76
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Reduced from EUR 614.12

HADRON² Classic 625 Rim Brake

Delivering unprecedented aerodynamic performance with the widest operational range, the HADRON Classic 625 excels in medium to high wind conditions. Designed to deliver maximum speed and thrust, in road racing, time trial and triathlon courses. The HADRON Classic 625 offers incredible all-around performance at an affordable price. UCI approved. Includes lifetime warranty for material and workmanship defects and a Fair-Share-Policy for any other riding damage.

Color options available:


Hadron Ultimate Decals

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Front Wheel
HADRON² Ultimate 500 Disc Brake
EUR 702.97
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Reduced from EUR 878.71
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Rear Wheel
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
HADRON² Classic 500 Rim Brake
772g 919g 1691g 48.5mm 25mm 23mm
HADRON² Classic 625 Rim Brake
795g 953g 1748g 62.5mm 27mm 23mm
HADRON² Classic 800 Rim Brake
861g 1004g 1865g 80.0mm 28mm 23mm

Description

Maximum aero performance and durability for an affordable price! Using the latest in aerodynamic and engineering development methods transferred from Formula 1, the HADRON Classic rims are full carbon and tubeless ready, using the same race & award winning aero rim shapes as the HADRON Ultimates. All Swiss Side HADRONs 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. The HADRON Classic is built with ultra durable DT Swiss hubs custom made for Swiss Side’s requirements, together with their Aero Comp spokes. Manufactured through DT Swiss, once again the highest possible Swiss 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 370 Classic, custom for Swiss Side. Rim brake wheel hub/axle dimensions are: 5mm x 100mm QR front / 5mm 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 Aero Comp J-bend 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

  • High end stainless steel bearings
  • Low friction thanks to single sided seals
  • 2080 N load capacity per bearing
  • Minimal bearing clearance

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)

Tyre Size

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

Rider Weight / Safety Notice

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

Wheel Spec Comparison

Profile Depth
i

HADRON² Classic 500
6
HADRON² Classic 625
8
HADRON² Classic 800
9

Aero Drag
i

HADRON² Classic 500
7
HADRON² Classic 625
8
HADRON² Classic 800
9

Aero Wind Stability
i

HADRON² Classic 500
10
HADRON² Classic 625
9
HADRON² Classic 800
7

Weight
i

HADRON² Classic 500
7
HADRON² Classic 625
6
HADRON² Classic 800
5

Stiffness
i

HADRON² Classic 500
8
HADRON² Classic 625
8
HADRON² Classic 800
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
500 / 625 63.05 3.15
500 / 500 64.10 4.20

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

PERFORMANCE DELTAS FOR WHEEL COMBINATIONS

Wind Tunnel Data measured on 2018 model Canyon Speedmax CF SLX at 45km/h

Wheel Setup Front / Rear Drag (W) DIFFERENCE (W) STEERING MOMENT (Nm) DIFFERENCE (%)
800/DISC 57.10 -1.80 1.29 0%
800/800 58.90 0.00 1.29 0%
625/800 60.00 1.10 0.97 -25%
625/625 60.20 1.30 0.97 -25%
500/800 61.70 2.80 0.71 -45%
500/625 62.10 3.20 0.71 -45%
500/500 62.70 3.80 0.71 -45%

*Performance 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
HADRON² Classic 500
45km/h
35km/h
350W
180W
10.6W
5W
0m 36s
0m 45s
1m 21s
1m 40s
2m 42s
3m 20s
HADRON² Classic 625
45km/h
35km/h
350W
180W
12.7W
6W
0m 43s
0m 54s
1m 37s
2m 01s
3m 14s
4m 02s
HADRON² Classic 800
45km/h
35km/h
350W
180W
14.8W
7W
0m 55s
1m 08s
1m 54s
2m 21s
3m 34s
4m 38s

*Drag reduction given relative to standard road wheel set.

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Wheel Mapping

Tyre of Riding Time Trial Road Racing Training Alps
HADRON² Classic 500
HADRON² Classic 625
HADRON² Classic 800

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