CeramicSpeed OSPW System for Shimano 9000/6800 Black Coated Bearing Bike Accessories_Trainer Parts & Accessories it’s ideal for the all-season

it’s ideal for the all-season blend of light weight

mesh and Microtex upper for a superior ventilation and a R4 carbon outsole for efficient power transfer in comfort

and mud-shedding polyurethane lugs provide grip when off the bike

Twin Speed Drive CO2

CeramicSpeed OSPW System for Shimano 9000/6800 Black Coated Bearing Bike Accessories_Trainer Parts & Accessories it’s ideal for the all-seasonDeveloped and designed entirely by CeramicSpeed, the Oversized Pulley Wheel (OSPW) System for Shimano 9000 6700 provides the ultimate optimization of your bicycle's drivetrain. This OSPW System features a set of 17 tooth aluminum Pulley Wheels, available in red and black, housed in a specially designed polyamide (PA) and carbon cage. The upper and lower 17 tooth oversized aluminums pulley wheels come fitted with either standard or coated CeramicSpeed