SIDI SRS Carbon Ground Inserts - Black 45-48 Material-ALuminum Diameter of the quill portion

Diameter of the quill portion is 22

Ultra-Torque bearings come pre-installed on Campagnolo cranksets

30% thicker than classic cork ribbon for better cushioning and shock absorption

Increased strategical placement of Grip-Pods matched to multi-facet Nano Knobs on shoulder and sides

SIDI SRS Carbon Ground Inserts - Black 45-48 Material-ALuminum Diameter of the quill portionThe SIDI SRS Carbon Ground Inserts are premium components designed to optimize performance and durability in SIDI cycling shoes equipped with the SRS (Sole Replacement System). These inserts feature carbon fiber construction offering lightweight strength and stiffness for efficient power transfer. Color Black Size 45 48