e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50, 21.5mm Offset, 160mm, with Self Extractor, Black Mountain FatBike Cranksets size: 29" front/rear: rear (XD)

size: 29" front/rear: rear (XD) rim: Arc 36 Carbon hub: Vault axle/spacing (mm): 12x148 Boost hole: 28h spoke: double butted nipple: alloy color: black weight: 1765g/set

Manufacturer Part Number: HXCBCCKB1

143893-Q0-L

Manufacturer Part Number: 52789

177825-Q0-L

e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50, 21.5mm Offset, 160mm, with Self Extractor, Black Mountain FatBike Cranksets size: 29" front/rear: rear (XD)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 clearance and are tested to E Enduro standards. Product Specifics Color: Black Crank Length (mm): 160 Pedal Spindle: 9 16"