This Robinson Racing Products pinion gear features a 25-tooth count and 64 pitch sizing, machined from aluminum with a hard coating for increased surface durability. It includes a set screw for securing the gear to the motor shaft. The 64P specification makes it compatible with standard 64 pitch gear systems common in touring and on-road RC applications. Features: 25-tooth, 64 pitch aluminum pinion Hard anodized coating for added wear resistance Includes set screw Lightweight aluminum construction 7/7/26 cs