CeramicSpeed ALPHA Pulley Wheel for SRAM Red/Force/Rival D1 & D2 Bit Size_Other Sizes providing a seamless fit that

providing a seamless fit that enhances drivetrain stability and minimizes noise during ride

providing a natural riding posture that improves control and reduces rider fatigue on urban or touring rides

The 650b wheel compatibility (up to 41mm tires) on smaller frames and 700c (up to 41mm tires) on larger sizes enable you to customize your setup for smooth gravel runs or urban cruising

Engineered as integrated and interdependent transmission components

CeramicSpeed ALPHA Pulley Wheel for SRAM Red/Force/Rival D1 & D2 Bit Size_Other Sizes providing a seamless fit thatUpgrade your cycling performance with the CeramicSpeed ALPHA Pulley Wheel, specially designed for SRAM Red D1, Force D2 D1, and Rival E1 D1 derailleur systems. Engineered with precision materials and innovative technology, this high performance derailleur pulley offers unmatched durability, efficiency, and smoothness on every ride. Materials & Construction Constructed from a one piece molded composite body, the ALPHA Pulley Wheel delivers exceptional