Shimano GRX RT-CL800 S Disc Brake Rotor with Lockring - 160mm, CenterLock, Silver Road/Track & Cross Cranksets -All standard steel springs are

-All standard steel springs are black and are marked with their spring rate in lbs/in (in 50 lb increments) and the total travel of the spring itself

167994-Q0-L

- Repositions Compatible with Shimano 10 or 11-speed rear derailleurs to increase chain wrap and reduce premature shifting degradation

711549-Q1-L29D03

Shimano GRX RT-CL800 S Disc Brake Rotor with Lockring - 160mm, CenterLock, Silver Road/Track & Cross Cranksets -All standard steel springs areThe Shimano RT CL800 disc brake rotor provides quiet and consistent braking control for any terrain. Consistent braking performance on any long, steep descent thanks to excellent heat dissipation Robust arm shape for quiet operation without sacrificing weight or heat dissipation 1. 5mm thickness Includes lock ring with internal serration Product Specifics Rotor Size (mm): 160 Pad Compatibility: All Pad Compounds Rotor Type: Two Piece Weight: 114