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Introducing Swiss Side AERO Socks: Maximize Your Aerodynamic Gain

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Front Wheel
Rear Wheel
|Brake Type:Disc Brake|Rim Depth:800|
|Brake Type:Disc Brake|Rim Depth:625|
|Brake Type:Disc Brake|Rim Depth:800|Rim Depth:500|Rim Depth:625|
|Brake Type:Disc Brake|Rim Depth:800|Rim Depth:500|Rim Depth:625|
|Brake Type:Disc Brake|Rim Depth:800|
|Brake Type:Disc Brake|Rim Depth:800|Rim Depth:500|Rim Depth:625|

HADRON² Ultimate

World Championship winning wheels. Best components and finest Swiss engineering make lowest aero drag with unmatched stability in the wind possible.

Top level aero performance on any course, in any conditions, for any rider. This 50mm profile depth is designed to provide best balance of performance across the widest spectrum of riding, from the mountains to time-trial / triathlon.

Maximum aerodynamic performance for the widest array of conditions. With 62mm profile depth, the wheel chosen for fast racing by Pro cycling teams or by triathletes for windy days and hilly courses.

The multiple World Championship winning wheel, 80mm deep profile, specific for time trial, triathlon, and setting new world records.

Brake Type
Front Wheel Depth
Rear Wheel Depth
Compatibility
Decal Colours

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HADRON² Ultimate Front Wheel

$851.00 Regular price $1,064.00

Description

Perfectly engineered stiffness to weight ratio, tubeless ready, hooked construction, designed to deliver the optimum balance of rolling resistance and aero performance for 25mm & 28mm tyres. Rim depths from 50mm to 80mm or full rear DISC wheel. Unmatched Swiss quality manufactured in collaboration with DT Swiss. UCI approved.

Weight

Front wheel:

  • HADRON² Ultimate 500: 670g
  • HADRON² Ultimate 625: 772g
  • HADRON² Ultimate 800: 815g

Rear wheel:

  • HADRON² Ultimate 500: 800g
  • HADRON² Ultimate 625: 889g
  • HADRON² Ultimate 800: 944g
  • HADRON² Ultimate Disc: 1100g
Rim

Inner rim width: 20mm
Max. rim width: 27/30/32mm
Tubeless ready clincher
Carbon

Hub

Model: Swiss Side 180
Disc brake compatibility: CTR-lock

Spokes

Model: DT aerolite® II t-head
Material: Stainless steel
End type: T-head
Spoke quantity: 24
Lacing: 2-cross
Spoke pattern left/non-drive side: 2-cross directional
Spoke pattern right/drive side: 2-cross

Nipples

Model: Pro-lock hidden
Material: Aluminium
Length: 12mm

Bearings

Bearing type: SINC ceramic
Reduces rolling resistance to absolute minimum

Compatibility

Compatible with:

Shimano 10 - 13 speed, SRAM 10 & 11 speed freehub as standard

SRAM 12- and Campagnolo 10 - 13-speed groupset options available separately

Safety notice

The maximum total system weight (bike + rider) for the HADRON² Ultimate disc brake wheelset is 110kg.
Tyre pressures for tubeless of 102psi should not be exceeded.
Tyre pressures for tube tyres of 123psi should not be exceeded.

Axle size

Disc brake
Front wheel: 12/100mm TA
Rear wheel: 12/142mm TA
Rim brake
Front wheel: 5/100mm QR
Rear wheel: 5/130mm QR

Tyre recommendation

All tyres from 25mm to 64mm can be used on this rim. For optimal aerodynamic performance, we recommend using a 25mm tyre on the front and rear. If additional comfort is desired, a 28mm tyre can be used on the rear.

Package includes

Rim tape pre-installed
Valve extension
Tubeless valve
Valve stickers
Brake pads only for rim brakes

Not included:
Disc rotor
Brake pads for disc brakes
Through axle

User manual

Wheel performance

At Swiss Side, transparency is the fundament of our goal to deliver exceptional value and make you fastest. We share the insights from our wind tunnel testing and extensive research, empowering you with the knowledge to achieve unparalleled speed and efficiency.

HADRON² Ultimate

Wheel Set Time Gain Summary

Model Speed Power Drag Reduction 40km 90km 180km
HADRON2 Ultimate 500 set 45km/h 350W 14.2W 0 min  48 sec 1 min  49 sec 3 min  38 sec
35km/h 180W 6.7W 1 min  00 sec 2 min  26 sec 4 min  31 sec
HADRON2 Ultimate 625 set 45km/h 350W 16.7W 0 min  57 sec 2 min  08 sec 4 min  17 sec
35km/h 180W 7.9W 1 min  11 sec 2 min  40 sec 5 min  20 sec
HADRON2 Ultimate 800 set 45km/h 350W 18.0W 1 min  02 sec 2 min  19 sec 4 min  37 sec
35km/h 180W 8.5W 1 min  17 sec 2 min  53 sec 5 min  45 sec
HADRON2 Ultimate 800 / HADRON2 DISC 45km/h 350W 19.8W 1 min  08 sec 2 min  33 sec 5 min  06 sec
35km/h 180W 9.3W 1 min  24 sec 3 min  10 sec 6 min  20 sec

The time gain is relative to a standard aluminum wheel set.

Learn more about the performance comparison of our HADRON² Ultimate and HADRON² Classic wheels.

Front wheel aero drag performance with crosswind

  • X axis: Crosswind in degrees. The angle of attack at which the wind arrives from the left or right side is defined in degrees as the Crosswind (yaw) angle. The negative numbers represent the angles when the wind is coming from the left side, the positive numbers represent the angles when the wind is coming from the right side.
  • Y axis: Aero Drag measured in Watts
  • Base drag: The Aero Drag at 0 degrees (wind purely from the front).
  • Thrust: The angle from which the wheel generates negative drag and actually pushes you forwards.
  • Sailing effect: The drag reduction produced with increasing cross-wind angle.
  • We compared different rim depths of the Swiss Side Hadron2 front wheels: 500 (red), 625 (blue), and 800 (grey).

Front wheel aero stability with crosswind

  • X axis: Crosswind in degrees = Crosswind (yaw) angle [°]. The angle of attack at which the wind arrives from the left or right side is defined in degrees as the Crosswind (yaw) angle. The negative numbers represent the angles when the wind is coming from the left side, the positive numbers represent the angles when the wind is coming from the right side.
  • Y axis: Steering moment in Newton Meters
  • The front wheel steering moment is the force that a cyclist feels in the handlebars when crosswinds hit the front wheel. Through our research and extensive testing, we have determined the characteristics which lead to a stable and confident feeling from the front wheel. These are shown in the graph with a close to linear steering moment curve without sudden change at the stall point. The stall point is when the wind angle is too high, and the airflow can no longer stay attached to the wheel.
  • We compared different rim depths of the Swiss Side Hadron2 front wheels: 500 (red), 625 (blue), and 800 (grey).
swiss side aerodynamic wheels road wheel
swiss side aerodynamic wheels cross detail
swiss side aerodynamic wheels
swiss side aerodynamic wheels
swiss side aerodynamic wheels
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