e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor BLK MFPN=D33XRDR-R Engineered to maintain consistent chain

Engineered to maintain consistent chain gap across all seven gears it eliminates vertical movement for faster shifting reduced shift force and an end to ghost shifting

The light mounts to the fork crown and delivers 500 lumens of light with a path-friendly horizontal cutoff beam for courteous anti-glare illumination

3'' (800 x 470 x 135mm) Weight: 17

including a continuous carbon fiber skeleton and rails

An oversized bottom-bracket and chainstay area increases pedaling stiffness and drivetrain efficiency

e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50 21.5mm Offset 165mm Self Extractor BLK MFPN=D33XRDR-R Engineered to maintain consistent chainA 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