NEW Shimano GRX RD-RX812 Rear Derailleur 11-Speed, Long Cage, Clutch 1x, 42t Max shifter_trigger Works with Garmin Charge power

Works with Garmin Charge power pack for up to 40 hours of additional battery life (Sold Separately)

BB Shell Width (mm): 89

Model: Dura Ace 9000

This modular system is designed around our EXP Series Side-Load Dry Bag

NEW Shimano GRX RD-RX812 Rear Derailleur 11-Speed, Long Cage, Clutch 1x, 42t Max shifter_trigger Works with Garmin Charge powerThe Shimano GRX 11 speed rear derailleur provides silent and uninterrupted rear shifting on rough terrain. An adjustable Shimano Shadow RD+ clutch prevents chain slapping and drops. Compatible with Shimano road Dual Control Levers Gravel tuned clutch tension provides smooth and reliable mixed surface shifting Rear Derailleur Mount Type: Shimano Rear Direct Mount Rear Derailleur Mount Type: 10x1 Standard Rear Der Shifter Compatibility: Shimano Road