e*thirteen Helix Race Alloy e*spec Crank Arm Set - DUB 12mm Offset 165mm Self Extractor BLK Weight Limit (lbs)-88 Unidirectional carbon fibre hand cranks

Unidirectional carbon fibre hand cranks steel axle and aluminium chainrings off substantial stiffness and excellent power transfer

Safety release tabs keep wheels turning even if debris gets between the fender and tire

It also has a sapphire lens and bright LED flashlight

The chrome hardened pin construction provides longer chain life

BB Shell Type Mid BB Bearing Sealed Cartridge Crank Spindle Diameter 19mm Interface 19mm Cup Diameter 41mm Primary Color Silver Spindle Diameter 19Mm

e*thirteen Helix Race Alloy e*spec Crank Arm Set - DUB 12mm Offset 165mm Self Extractor BLK Weight Limit (lbs)-88 Unidirectional carbon fibre hand cranksA 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 Defined Color Black