Shimano GRX RD-RX717 Wireless Di2 12 Speed Rear Derailleur Cassons Drivetrain: Electromagnetic brake

Drivetrain: Electromagnetic brake

Rims: Giant XCT 29 Alloy

Chrome-plated cage plates

Damping System: RL

yet it's easy to remove and store in the "flipped up" position

Shimano GRX RD-RX717 Wireless Di2 12 Speed Rear Derailleur Cassons Drivetrain: Electromagnetic brakeThe Shimano GRX RD RX717 Wireless Di2 Rear Derailleur is designed to give gravel riders the durability and gear range to pursue any off road exploration that tickles their fancy. This derailleurs wedge shaped body is filled with a low profile Shadow ES stabiliser that produces excellent chain retention and reduced chain slap over rough terrain, and the lower profile construction produces excellent clearance over trail obstacles. Because it is