ProTaper – ProTaper Rear Sprockets - Yamaha - 50-54 Tooth, including anodized 50, 51, 52 and 53 tooth aluminum rear sprockets, factory blue and black finishes, and Honda/Yamaha crossover fitments, takes gearing the other direction. Once you climb past 50 teeth, final drive shortens enough to change how the bike behaves at low speed: a 52 or 53 tooth sprocket lets a YZ drive out of slow, rutted corners and steep faces on throttle instead of clutch, which is exactly what supercross-style tracks, tight woods and technical hare scrambles demand. The 50 and 51 tooth options are a smaller step for riders who only want a little more snap while keeping usable top speed on the straights. Every size is machined from hard-anodized aluminum, so a bigger sprocket does not translate into meaningful extra rotating weight, and blue or black finishes keep the bike looking deliberate rather than patched together. Shared Honda/Yamaha and Suzuki/Yamaha patterns cover more machines with the same proven tooth form, cut to hold the chain deep in each valley under hard torque. Fitting the right ProTaper tooth count delivers stronger drive and better bike control.