e*spec Plus Bosch Gen 4 Crank

The e*thirteen e*spec Plus Crank Arm Set is designed to work with Bosch Gen 4 eBike motors. These alloy crank arms offer a slim Q-factor and smaller overall profile, while keeping e*thirteen's proven crank technology at the forefront.

• An 8mm self extractor bolt is built into both arms for easy removal
• 6061 Aluminum