Description
Pioneer SGY68 Shimano Ultegra FC 6800 Dual Leg Power Meter Crankset 11s 175mm 53 39T 110mm BCD Hollowtech II speed 11 12 Steerer Tube Diameter: 1 1 8"" Steerer Tube Diameter: 1 1 8"" Frame Specific The sharp and narrow tooth profile as well as beveled edges engage the chain earlier than triangle shaped teeth and helps to prevent chain defection