Profile Racing Spline Drive 19mm sprocket

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PRODUCT DETAILS The Profile Spline Drive sprocket is manufactured from 7075 Aluminum in the USA. This sprocket requires no sprocket bolt, instead it has a hardened CrMo steel inser t in that matches up to the 48 splines in your Profile BB spindle. We have 23, 25, 28, 30, 33, 36, 39, and 42 tooth versions available. The teeth are 1/8", and most of our anodized colors are available. 19mm only, profile universal adaptor is not compatible. Weight:25t: 76g/2.65oz28t: 87g/3.05oz30t: 93g/3.25oz NOTE: Spline drive sprockets are not compatible with 2-piece cranks for Right Side Drive (not enough room for splines). Spline drive sprockets are compatible on Left Side Drive 2-piece cranks though. Show more