Shimano GRX RD-RX717 Wireless Di2 12 Speed Rear Derailleur Cassons Damping System: RL

Damping System: RL

Ergo padded handle for increased grip and comfort while handling

A change in UCI rules now allows for a minimum cross section on all tubes to be as small as 1cm — down from the previous minimum of 2

Closure: zippered

Chrome-plated cage plates

Shimano GRX RD-RX717 Wireless Di2 12 Speed Rear Derailleur Cassons Damping System: RLThe 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