e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50, 21.5mm Offset, 160mm, with Self Extractor, Silver Headset Reducers 144742-Q4-L39C03

144742-Q4-L39C03

Largest Cog: 46

compact-drive Singlespeed

UPC: 884603917350

Cassette Cogs: 11-13-15-17-19-22-25

e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50, 21.5mm Offset, 160mm, with Self Extractor, Silver Headset Reducers 144742-Q4-L39C03A 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: Silver Crank Length (mm): 160 Pedal Spindle: 9