e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50, 21.5mm Offset, 165mm, with Self kryptonite anywhere utility of the classic

anywhere utility of the classic Freerider

so you're always in the right gear

They can corner with increased traction

Compatible with Shimano STI Road Shifters

e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50, 21.5mm Offset, 165mm, with Self kryptonite anywhere utility of the classicA high performance, weight optimized alternative to carbon fiber, for riders who prefer alloy cranks. These 24mm ISIS interface cranks are engineered for compatibility with Bosch Gen 4, Brose S Mag, TQ HPR 50, Fazua, Yamaha, Maxon, and Specialized Brose motor systems. They come in short lengths starting at 155mm for improved pedal clearance and are tested to E Enduro standards. Item Specifications Color Silver Crank Length (mm) 165 Defined Color