Aeffect R eBike Crank Arm Set Options:Aeffect-R Ebike Crank Arm Set - 165mm, For Bosch Gen 4 and Gen 5 Drive System, 7050 Aluminum, Black we added laser perforated venting

we added laser perforated venting to keep you and your knee pads from getting overly sweaty

providing plenty of clearance for muddy conditions

with a motor or without

A system of dual-source carbohydrates provides an “express lane” for each carb to deliver energy to your body much quicker than a single source of carbs

Aeffect R eBike Crank Arm Set Options:Aeffect-R Ebike Crank Arm Set - 165mm, For Bosch Gen 4 and Gen 5 Drive System, 7050 Aluminum, Black we added laser perforated ventingThe RaceFace Aeffect R eMTB cranks bring the burly, purpose driven design of Aeffect R to the Bosch drive system for seamless motor integration. Q factor: 194mm