e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor BLK 20-51 Use the included X-Straps to

Use the included X-Straps to secure tubes or bags to the carrier

Assembled with the lightweight 180 DICUT hub with ceramic bearings and DT Aerolite spokes providing fast acceleration and low rolling resistance

5hr recharge time

even at low temperatures with the Michelin Magi-X compound

3-layer textile offering great breathability

e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor BLK 20-51 Use the included X-Straps toA 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 Black Crank Length (mm) 165 Pedal Spindle 9 16" Spindle Interface Type ISIS