High Performance. Confidence On Any Terrain.Helix Race e*spec Alloy Cranks offer a high performance alternative to carbon fiber for riders that prefer alloy or dont want to pay for carbon to get a premium product. Forged and extensively CNC finished, the Helix Race e*spec Crank is a piece of machining art to personalize your fit and dream e-bike build.These cranks are a serious upgrade that will increase strength and pedal strike resistance while reducing your bikes weight. Available in eMTB rider-preferred lengths for improved pedal clearance on low BB frame geos. Equipped with built-in alloy self extracting crank bolts for ease of installation and removal when its time to service.Compatible with Bosch, Brose S Mag, TQ, Fazua*, Yamaha, Maxon and Specialized® Brose motor systems using the 24mm ISIS standard. They feature narrow offsets for traditional MTB Q Factor feel while offering enough clearance for motors andchainstays.Dont let the light weight fool you. The Helix Race e*spec