e*thirteen Helix e*spec Crank Arm Set - 160mm BOSCH Gen4-Brose S Mag-TQ HPR50 Self Extractor BLK MFPN=803-00-589 Designed from the ground up

Designed from the ground up Rim Stix work with all tire and rim combos and include an emergency valve core remover

For aero disciplines hydraulic disc brakes can reveal a whole new world of speed savings

} Built with the same features as the standard cranks

They share the new T-Ride Hiking System walk mode and recognizable style of the adult Cochise boots

e*thirteen Helix e*spec Crank Arm Set - 160mm BOSCH Gen4-Brose S Mag-TQ HPR50 Self Extractor BLK MFPN=803-00-589 Designed from the ground upe*thirteen Helix e*spec Crank Arm Set 160mm 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.