Shimano Rear derailleur 12v SGS

Paired with a 12-speed cassette with 10-51 teeth, the GRX RX717 rear derailleur offers cyclists of all levels the speed, range, and durability needed to take on any gravel challenge. This derailleur features an integrated impact recovery device and robust rollers. With its shape designed to deflect impacts, this derailleur withstands significant shocks while maintaining quick shifting. The same battery powers the GRX RX827, XTR M9250, XT M8250, and DEORE M6250 derailleurs, ensuring perfect compatibility between your mountain bike and gravel bikes.

• »Completely wireless shifting for rough gravel terrain
• »Robust design: the wide-link structure, protective plate design, durable aluminium plate, and solid roller enhance strength and longevity.
• »Rear derailleur protection feature: the new automatic recovery function in case of impact instantly returns the derailleur to its original position after a shock.
• »SHIMANO SHADOW ES: a more compact and robust evolution of the pioneering SHADOW RD+ chain stabilisation concept from SHIMANO.
• »Protected battery: safely integrated in a closed space, the battery won't shift even on rough terrain, while remaining easily removable for charging.