1、Applicable Model: Spur main gear with pinion gear is suitable for Kraton 1/8, for Notorious 1/8, for Outcast 1/8, for Talion 1/8, for TLR Tuned 1/8, for Typhon 1/8, for Fireteam 1/7, for Mojave 6s 1/7. 2、High Strength Material: Gears are made of steel material. The gear surface is treated with anti rust treatment, which has strong wear resistance, corrosion resistance, good performance and long service life. 3、52T spur main gear with 12T 14T 16T pinion gear can realize more efficient power transmission system, obtain higher strength, and maximize the power of rc car. 4、Run Smoothly: Good processing makes the gear roll smoothly and has the ability to withstand high force, so that your remote control car has good driving performance. 5、Work Smoothly: Compared with other pinions, our M1 5mm motor gears have good processing, low roughness and noise, making them roll smoothly. 6、Easy Installation: RC car gears have its own fixing screw holes, easy installation, simple operation, and machine screws are provided in the package. 7、3 Different Pinion Gears: 12T 14T 16T pinion gear with different numbers of teeth are available, giving you more choices in gear ratios and making your RC car perform better. Item Type: 52T Spur Main Gear with 12T 14T 16T Pinion Gear Product Material: Steel Product Color: Black Weight: Approx. 77g / 2.7oz Number of teeth: 52T Diameter: Approx. 52mm / 2.0in Thickness: Approx. 11mm / 0.4in Center Aperture: Approx. 5mm / 0.2in Number of Teeth: 12T, 14T, 16T 12T Size: Approx. 15x14mm / 0.59x0.55in 14T Size: Approx. 16x15mm / 0.63x0.59in 16T Size: Approx. 18x15mm / 0.71x0.59in Center Diameter: Approx. 5mm / 0.2in Applicable Model: Suitable for Kraton 1/8, for Notorious 1/8, for Outcast 1/8, for Talion 1/8, for TLR Tuned 1/8, for Typhon 1/8, for Fireteam 1/7, for Mojave 6s 1/7 1 x 52T Spur Gear 1 x 12T Pinion 1 x 14T Pinion 1 x 16T Pinion 1 x Gasket 1 x O Ring 3 x Millimeter Screw 1 x Wrench