Race Face's Aeffect R eMTB cranks bring the burly, purpose-driven design of Aeffect R to the Bosch Gen4 drive system. While they are designed for rowdy, power-down riding, the 444g weight puts them among the lightest alloy eMTB cranks on the market. Pair with a Steel DM Bosch G4 ring for the perfect integrated styling.

Ground Control
Dial in your fit with 160mm, 165mm and 170mm crank lengths, trimmed to length for improved rock and roots clearance on shorter sizes.

Become the Machine
Purpose-built for Bosch Gen4 drive system for seamless motor integration.

Specifications

• Crank Arm Length: 165mm // 170mm // 175mm
• Compatibility: Optimized for Bosch Gen4
  Compatible but not optimized for Bosch Gen2
• Includes: Pedal Washers
• Chainring is not included. Shop Chainring
• Material: 7050 Aluminum
• Colour: Black
• Weight: 485g (165mm Arms)