CAST Yum Yum Grip - Carver Green Bikes The FD-R7100 from the Shimano

The FD-R7100 from the Shimano 105 R7100 series is a mechanical 2x front derailleur for road bikes with 12-speed shifting

This is the top of the family tree—where race-bike ambition meets deluxe real-world rideability

gains and efficiency

Diameter: 4

Chain Shimano Ultegra

CAST Yum Yum Grip - Carver Green Bikes The FD-R7100 from the ShimanoThe grips thick, shallow rings minimize float typically associated with thinner rings, while the super soft, tacky compound offers excellent damping. High grip zones reduce hand rotation in wet conditions, and a thick flange provides added protection. Specifications Diameter: 31. 5mmLength: 136mmCompound: Soft A20 Mfr Claimed Weight TBC