Shimano Ultegra R8170 C60 Carbon CL Disc Wheel

Shimano Ultegra R8170 C60 Carbon CL Rear Disc Wheel

The Ultegra R8170 C60 Carbon CL Disc Wheel from Shimano features a 60mm-deep full-carbon rim that’s ideal for high-speed and flatter race events. Suited to time trial and triathlon races, this wheel is tubeless ready for fast rolling speeds, low rolling inertia and exceptional grip in all conditions. And it’s compatible with Shimano 11 and 12-Speed gear systems and it features a centre lock rotor mount for use with disc brakes.

Designed for the highest speed environments and modern tyre widths, the Ultegra C60 wheelset shares its all-carbon rim profile with Dura-Ace but employs a hub that is compatible with both 11 and 12-speed cassettes.

For situations where aerodynamics is the priority, the new Ultegra R8170 C60 wheelset features an all-carbon, 21 mm internal, tubeless compatible rim and a super-fast cup and cone bearing hub that is compatible with both 11 and 12-speed cassettes.

Centre-Lock Disc Rotor Mount

The Centre Lock system makes an easy rotor installation possible with a spline mount and a lock ring. The lock ring mounting system reduces the total working hours by shortening the amount of time of both installation and de-installation. In addition, the secure fixing by the spline mount enhances precision and rigidity while improving braking efficiency.

D2 Aerodynamic Rim Profile

Aerodynamic performance is affected by wind direction. To create the D2 rim, Shimano engineers considered both frontal and crosswinds, aiming to achieve optimal performance in real-world riding conditions. Extensive prototype testing, in the wind tunnel and on the road, proved that a wide rim shape with a deep tire bed performs best across a wide range of conditions. At yaw angles ranging from 0 to 15 degrees, the Shimano D2 rim profile reduces air drag better than others aero shape rims. This rim design also boosts lateral wheel stiffness and offers improved vertical compliance for increased control, comfort and durability on the road.

Rear Wheel OPTBAL Spoke System

The OPTBAL rear wheel spoke system features 21 spokes—14 on the drive side and 7 on the non-drive side. Cassette spacing in today’s wheels produces unbalanced tension in traditional 1:1 spoke systems. This unbalance is intensified with the 11-speed cassette, producing nearly double the tension on the drive side spokes. Generally, high and low tension spokes have respectively tendency toward breaking down and coming loose spoke nipples. Unbalanced tension affects durability and strength. The OPTBAL design rebalances spoke tension, enhancing wheel rigidity and strength for a more durable wheel.

Features:

• Series: Ultegra R8100 Series
• Rim: Carbon Tubeless Ready
• 60 mm height full carbon rim
• Internal Rim Width: 21mm
• Shared rim profile with R9200 Dura-Ace wheels
• Improved aerodynamics
• Axle Size: 12x142mm
• Rear Speeds: 11/12-Speed Shimano
• Disc Rotor Mount: Centre Lock
• Single or Pair: Single, rear wheel only
• Weight: 911g

A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).

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