e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor BLK ModelNumber=D1125 Select profile and assist modes

Select profile and assist modes on display

6 Stanchion Diameter 38 Steerer Tube Length (mm) 264 Steerer Type Tapered Travel (mm) 180 Wheel Size 27

Never lose sight of your batterys life with the convenient 3-color indicator

Zipp's single-wall approach Moto Technology allows the rims to "pivot" from either side of the spoke bed while traversing rough terrain

grip color camo clamp color black length 130mm diameter 29

e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor BLK ModelNumber=D1125 Select profile and assist modese*thirteen Helix Race Alloy e*spec Crank Arm Set BOSCH SX Brose S Mag TQ HPR50 21. 5mm Offset 165mm with Self Extractor Black. A 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