An ideal addition to any premium road bike build, the Shimano Ultegra R8170 C36 Tubeless CL Disc Rear Wheel features a stiff and aerodynamic carbon rim, paired with a rapid engagement hub for near-instant acceleration. One for the climbers, the 36mm height combines speed with lightweight performance, making this rear-wheel an exceptional all-around choice. The rim profile is shared with its more premium, Dura-Ace equivalent and offers tubeless compatibility for ultimate speed and efficiency.
Weatherproof Labyrinth double-contact seals limit water ingress to extend the lifespan of the bearings, and Borozon treated races reduce friction for a ride free from drag. The combination of elbow-less spokes and wide flange spacing offers exceptional lateral rigidity without compromising fatigue-reducing compliance.
Supplied as a warranty replacement, I purchased the complete wheelset from Sigma, however the freehub body developed a ridiculous amount of play in less than 100 miles. Sigma identified the issue, within a week a replacement was sourced, fitted and has held up so far. 5* Customer Service.
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
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From a single Osaka workshop in 1921, Shimano has grown into the world's most influential component maker. The brand's relentless engineering — Dura-Ace, Ultegra, GRX, XTR — has shaped the way the world shifts, brakes and rides, on the road and off it.
Shimano's flagship groupset, Dura-Ace, has been the benchmark for top-level road components for more than five decades. Every refinement that lands on Dura-Ace eventually shapes the entire Shimano range, all the way down to entry-level drivetrains.