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 updated tooth profile runs quieter

updated tooth profile runs quieter

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

No oil is needed-sharpen dry or with water

100% handmade in Yorkshire

wet snow to increase dirt repulsion and speed while reducing icing

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 updated tooth profile runs quieterA 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