e*thirteen Helix e*spec Crank Arm Set - 170mm BOSCH Gen4-Brose S Mag-TQ HPR50 Self Extractor BLK

e*thirteen Helix e*spec Crank Arm Set - 170mm BOSCH Gen4-Brose S Mag-TQ HPR50 with Self Extractor Black. Helix Core cranks provide an e-bike drivetrain upgrade with high-end features and aesthetics at an exceptional value. Forged for e-Enduro strength with alloy self-extractor bolts pedal washers and molded impact boots. 24mm ISIS interface models are compatible with Bosch Gen 4 Brose S Mag TQ Fazua Yamaha Maxon and Specialized Brose motor systems. Available in short lengths from 155mm for improved pedal clearance.

Forged CNC Machined AL-6066-T6 arms

Compatible with 24mm ISIS Spindles

Chainring sold separately