Profile Spline Drive - 19mm

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Requires no sprocket bolt. Instead, it has a hardened CrMo steel insert in that matches up to the 48 splines on the crank axle for pure, direct power transfer. Available for 19mm s plined axles only. 1/8″ tooth width for use with most freestyle/street & single speed chains.###section### Product Specs TYPE: Spline Drive MATERIAL: Alloy WEIGHT: 76g/2.65oz Show more