Feature: 1. Material: Made of nylon, powder metallurgy, steel, not easy to wear, high strength, more delicate appearance, long service life 2. Improve Performance: It can effectively improve the performance of your car, and reduce the gear position and sweep the probability, so that the remote control car driving stable 3. Power Transmission: An efficient power transmission system that can be used to vary speeds to provide a smoother ride, lower RPM and higher torque 4. Compatibility: Precise shapes and sizes, RC car motor gear kit suitable for SCY 16103, 16201, 16101, 16102pro 1/16 RC cars 5. Easy Disassembly: Easy installation and disassembly, can directly replace the original plastic parts or damaged parts, in order to obtain higher strength Specification: Item Type: RC Car Motor Gear Kit Material: Nylon, Powder Metallurgy, Steel Weight: Approx. 101g / 3.6oz Product Type: RC Accessories Number of Differential Teeth: 30T Bearing Size: Approx. 13x8x3.5mm / 0.5x0.3x0.1in Bearing to Bearing Distance: 23mm / 0.9in Differential Size: Approx. 42x30mm / 1.7x1.2in Number of Driving Gear Teeth: 10T Driving Gear Size: Approx. 22x12mm / 0.9x0.5in Number of Teeth of Motor Gear: 18T Motor Gear Center Aperture: 3.175mm / 0.1in Motor Gear Size: 12x10mm / 0.5x0.4in Number of Main Gear Teeth: 46T Main Gear Diameter: 29mm / 1.1in Application: for SCY 16103, 16201, 16101, 16102Pro 1/16 RC Cars . Package List: 2 x Differential2 x Driving Gear1 x Main Gear1 x Motor Gear1 x Set Screws Note: 1. Due to manual measurement, please allow an error of 1‑3mm. Thanks! 2. The monitor is not calibrated consistently, and the color of the item shown in the photo may be slightly different from the actual object.