RC enthusiasts, upgrade your ride's performance! This Hot Racing set gives you three high-quality, hard-anodized aluminum pinion gears: 13-tooth, 18-tooth, and 19-tooth. They're all 32 pitch and .8 module, which is a common size for many popular 1/10 scale RC cars. Made from CNC-machined 6061 aluminum, they're lighter and often cooler-running than stock steel gears, which can help with brushless motor setups. The teeth are beveled for smoother meshing, and each gear is stamped with the tooth count so you don't mix them up. They use an M4 set screw for mounting. This set is known to work well with Traxxas models like the Slash 4x4, Slash 2WD LCG, Rally, and Stampede 4x4 VXL (always double-check compatibility for your specific model). A great way to fine-tune your gear ratio for more speed or torque. Includes the necessary set screws. Grab your Allen wrench and get tuning!