S300 Courier Crankset Optie:Crank Set S300 1.1 Courier Mirror Black w GXP Cups 68 165 48 This creates a truer clamping

This creates a truer clamping surface and helps prevent stress risers

it also delivers a spring rate you’d generally only get from a much heavier coil shock

This pawl and spring kit is compatible with all E-sync hubs

thanks to an optimal tooth profile and shift ramp design for quick and positive index shifting

S300 Courier Crankset Optie:Crank Set S300 1.1 Courier Mirror Black w GXP Cups 68 165 48 This creates a truer clampingCourier crankset with mirror black finish. Speeds: n a BB Compatibility: GXP PF GXP 68 73mm Chainring Size: 48 Crank arm length: 165mm, 170mm BB Spindle Interface: 24mm Chainring material: n a Guard: n a Crank arm material: Aluminum