e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor Silver CheckoutTitle=Bosch Battery Holder Kit For Rack Battery Minimal rolling resistance without negatively

Minimal rolling resistance without negatively affecting corner grip

Alloy large lever and dual release mechanism

Fidlock magnetic buckle

track rides

5mm 12/13-Speed 8-Bolt Direct Mount DUB Spindle Carbon E1

e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor Silver CheckoutTitle=Bosch Battery Holder Kit For Rack Battery Minimal rolling resistance without negativelyA 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. Color Silver Crank Length (mm) 165 Pedal Spindle 9 16" Spindle Interface Type ISIS