Helix Race Alloy e*spec Crank Bosch Gen4, 155mm, Black

- Compatible with Bosch, Brose S Mag, TQ, Fazua Ride 60*, Yamaha, Maxon and Specialized Brose motor systems using the 24mm ISIS standard\n- Forged and CNC finished for performance with great style\n- Available in short lengths for improved clearance\n- Equipped with built-in alloy self extracting cranks bolts and crank boots\n- Tested to exceed E-Enduro EN17406 Class 4 standards