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

6 Color Gloss Black Crown Race 30 Wheel Size 29" External Adjustments Rebound Damping Defined Color Black Positive Spring Air Stanchion Diameter 38 Steerer Tube Length (mm) 268

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

No oil is needed-sharpen dry or with water

100% handmade in Yorkshire

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