e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor BLK Fits Brand-microSHIFT Approved for E-bike usage -

Approved for E-bike usage - Up to 75nm

Model BOX One Description Single Speed CrMo Cog Hub HG (8-11sp) Teeth 15 Chain 3/32" Color Black

42mm rim profile and flat spokes are wind tunnel proven for low wind resistance and excellent lateral stability at high speed

Individually settable code

Includes a ratchet: fine-toothing with a small return angle switchover (right fixed left) maximum torque of up to 50 Newton metres

e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor BLK Fits Brand-microSHIFT Approved for E-bike usage -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. Color Black Crank Length (mm) 165 Pedal Spindle 9 16" Spindle Interface Type ISIS