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 Model Gravel Grinder Race Size

Model Gravel Grinder Race Size 700c Width 38mm Compound Vulcanized Bead Folding Type Tubeless Color Black Weight 355g

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

including a continuous carbon fiber skeleton and rails

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

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 Model Gravel Grinder Race SizeA 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