Helix Core e*spec cranks give your e-bike an upgrade with high-end integrity and aesthetics at a great value. Engineered for e-MTB strength, so you don’t need to worry about pedal strikes or holding back on your next gravity run. Forged aluminium ( AL-6066-T6) arms keep you confident on the trail, while alloy self-extracting crank bolts mean efficient routine service, and minimum added weight.Added details like pedal washers, moulded impact boots, and e-rider preferred shorter lengths deliver all the high-end features you'd expect from a crank-set well over its price.Compatible with Bosch, Brose S Mag, TQ HPR 50.Spindle: Compatible with 24mm.Weight: 497g. Length: 160 mm.Scope of delivery: Crankset, Crank Boots (x2), Sticker & User Manual.