RaceFace Aeffect-R Ebike Crank Arm Set - 170mm For Bosch Gen4 Drive System 7050 Aluminum BLK MFPN=SC-30-BLU-QR Developed with input from Tour

Developed with input from Tour de France Enduro World Cup and World Cup Downhill mechanics the ultralight and compact footprint offers 25 of the most common bike repair and maintenance features – from 19 bicycle-specific tools

The shadow design echoes other Shimano rear derailleurs with a low profile shape and single tension construction that does not hit the chain stay in rough riding conditions

Stealth non-marking Phantom outsole

This chainring is equipped with the patent pending Drop-Stop asymmetrical tooth design for the best in wear life mud clearance and chain retention

RaceFace Aeffect-R Ebike Crank Arm Set - 170mm For Bosch Gen4 Drive System 7050 Aluminum BLK MFPN=SC-30-BLU-QR Developed with input from TourRaceFace Aeffect R Ebike Crank Arm Set 170mm For Bosch Gen4 Drive System 7050 Aluminum Black. The RaceFace Aeffect R eMTB cranks bring the burly purpose driven design of Aeffect R to the Bosch Gen 4 Performance Line CX drive system for seamless motor integration. Optimized for use with Bosch Gen 4 Performance Line CX drive systems Compatible but not optimized for use with Bosch Gen 2 drive systems Constructed of 7050 Aluminum TECH SPECS Color Black