Shadow Conspiracy “Motus” spline drive sprockets are in stock now! These sprockets come in 25t or 28t sizes, 19mm or 22mm spindle size, and 7 different colors! Click HERE to see more info and to order yours now! The Shadow Motus spline drive sprocket features a 3 spoke design that tapers from 8mm thick in the center, to 6mm thick on the end for added strength. Multi-level machined design from 7075 aluminum which is super strong and lightweight. This sprocket features offset teeth to improve chain alignment. 48 spline chromoly center bore to eliminate the sprocket bolt, which helps eliminate tight spots in your chain. Fits 1/8 chains only. This sprocket is compatible with 3 pc cranks that use a 19mm or 22mm – 48 splined crank spindle only. Weight 3.6 oz.