The Shimano Ultegra R8170 Tubeless CL disc wheelset delivers premium performance across all gradients. Blending lightweight performance with aerodynamic prowess, this wheelset is an excellent upgrade for any aspiring racer. Featuring a 21mm internal width, the profile is modern and designed to pair well with contemporary tyres, and its tubeless-ready credentials allow for easy conversion. Fast off the mark, the rear hub uses direct engagement interlocking faces for rapid acceleration, helping you to shave off crucial seconds on race day. The races are coated with Borozon to minimise friction, allowing for a drag-free ride experience, while Labyrinth double-contact sealing reduces water ingress to enhance durability. HIGHLIGHTS Designed to meet pro road race criteria Lightweight clincher full carbon 50mm deep rims for improved aerodynamics, increased rigidity and excellent inertia for sprinters and TT specialists Easy to use Center Lock rotor mount for use with disc brakes Stainless steel butted (2.0-1.8-2.0) and bladed straight pull spokes for optimal balance and rigidity Elbowless spokes make for a strong yet compliant wheel High lateral rigidity is produced with a wide flange spacing Labyrinth double-contact sealing effectively shuts out water and dirt Alloy cone with integrated steel Borozon treated bearing races – super mirror finish reduces friction Cold forged, machined aluminium hub shell and oversized 7075 alloy axle keep the wheel weight to a minimum Freehub uses direct engagement interlocking faces for quick power transfer For 100 x 12mm axle/142 x 12mm axle 700C clincher (tubeless compatible) FEATURES Tyre compatibility: 700C clincher (tubeless compatible) Wheel Size: 700C/622 x 21C Rim: Carbon Spokes: Stainless steel butted (2.0-1.8-2.0) and bladed straight pull spokes Spoke count: 24 Bearings: Alloy cone with integrated steel Borozon treated bearing races Freehub compatibility: 12-speed compatible rear wheel Brake compatibility: Disc Disc standard: Center Lock Tyre recommended size: 25 – 622 – 32 – 622 Axle: 12mm x 100mm / 12x 142mm thru-axle compatible
