The shimano rs81 c24 carbon laminate clincher front wheel is a high performance road racing wheel meets the demands of todays professional and amateur riders with a 21 mm deep carbon and alloy clincher rim is both light weight and rigid whilst maintaining high braking performance with standard brake pads with 16 front stainless steel butted and bladed straight pull spokes builds a strong and compliant wheel the cold forged and machined hub has polished bearing races to reduce friction and pr