Shimano RS81 C35 Carbon Road Rear Wheel High performance road racing wheel meets the demands of today's professional & amateur riders Carbon & alloy clincher rim is both light weight & rigid whilst maintaining high braking performance with standard brake pads 3.5cm deep 20.8 mm wide carbon rim with alloy braking surface for enhanced aerodynamics & increased rigidity for sprinters & TT specialists 21 rear stainless steel butted & bladed straight pull spokes for optimal balance & rigidity (OPTBAL) High lateral rigidity is enhanced with a wide flange spacing Labyrinth double contact sealing
- low-friction seals effectively shut out water, mud & dirt without affecting rotational smoothness Quick & easy to maintain digital click bearing adjustment Polished bearing races reduce friction & provide for smooth rotation Cold forged & machined aluminium hub shell & oversized 7075 alloy axle keep the wheel weight to a minimum 8, 9, 10 & 11-speed compatible 700C