The GRX RX717 rear derailleur, paired with the 10-51D 12-speed cassette, gives gravel riders the speed, range, and toughness needed to take on any challenge. Thanks to integrated Automatic Impact Recovery, a shape that reforms after impacts, and solid pulleys, this derailleur withstands the hardest trail impacts while maintaining its lightning-fast shifting speed. It also shares the same battery as the GRX RX827, XTR M9250, XT M8250, and DEORE M6250 derailleurs, so you can use it on both MTB and gravel bikes.
- Full-wireless shifting for gravel on rough terrain
- Robust design: The wide link structure, guide plate design, aluminum plate durability, and pulley solidity add toughness and long life.
- RD Protection function: The new Automatic Impact Recovery function instantly returns the derailleur to its original position after an impact.
- SHIMANO SHADOW ES: The slimmer, tougher evolution of SHADOW RD+, SHIMANO's pioneering chain stabilization idea.
- Protected battery: Safely hidden inside an enclosed space, the battery doesn't move even on the roughest terrain, while remaining easily removable for charging.