ceramic speed ospw aero per shimano 9250 8150 rivestito Color:Schwarz This model was developed to

This model was developed to meet the stringent requirements of demanding sports such as cycling

M 57-58cm40mm12mm

In this Nano Optics Photochromic™ version

Weight M - 24

Greater grip

ceramic speed ospw aero per shimano 9250 8150 rivestito Color:Schwarz This model was developed toDescription OSPW Aero for Shimano 9250 and 8150 The world's fastest pulley system just got faster. OSPW Aero offers a lifetime warranty and is wind tunnel tested to have 40% less friction than a stock derailleur, making it perfect for time trials or triathlons. The OSPW Aero is an industry leading product developed in collaboration with one of the world's leading aerodynamicists; Simon Smart and is chosen by world champions and top athletes around the