SHIMANO GRX Di2 RD-RX717 1x12-SPEED REAR DERAILLEUR electric-bike When weight and efficiency matters

When weight and efficiency matters most

Featuring a long list of ideas from everyone here – and we’re riders after all - you’re gonna love the new S2 grip

secure bar mount available

Nickel plated for years of service

SHIMANO GRX Di2 RD-RX717 1x12-SPEED REAR DERAILLEUR electric-bike When weight and efficiency mattersThe SHIMANO RD RX717 GRX Di2 Wireless Rear Derailleur brings electronic precision to gravel and adventure riding. This 12 speed derailleur features wireless shifting via integrated battery (BT DN320 sold separately) with BLE and ANT+ connectivity for seamless gear changes on any terrain. The Shadow ES design includes a low profile skid plate and dual spring chain stabiliser that reduces bounce and skipping on rough surfaces. Enhanced spring force