e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 160mm Self Extractor BLK Model-Pro N-10/11 } Service parts for DB

} Service parts for DB air and coil models

Refined composite formula resists breakage and bending

Hub/Disc Compatibility 6-Bolt Pad Compatibility All Pad Compounds Rotor Size (mm) 180 Rotor Type Two Piece keyword search ebike

ring type single (anti-chain drop) mount 8-bolt DM 3mm offset teeth 30T oval/round oval color gold

This allows for smooth chain engagement meaning that the chain always remains in close contact with the chainring to give you the most reliable and positive drive possible

e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 160mm Self Extractor BLK Model-Pro N-10/11 } Service parts for DBe*thirteen Helix Race Alloy e*spec Crank Arm Set BOSCH SX Brose S Mag TQ HPR50 21. 5mm Offset 160mm 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