Welcome to our store! This RC motor gear set is the perfect replacement for your old or damaged parts, compatible with Tamiya motor gears TT01 TT02 TB02 TA05 RC cars. Enjoy smooth operation and reduced noise compared to other pinion gears. These pinion gears boast excellent machining, roughness, and low noise for seamless rolling. Four different gear options with varying tooth counts provide greater flexibility in gear ratios, optimizing your RC car's performance. Precision machining ensures smooth gear rolling, featuring integrated mounting screw holes for easy installation and user-friendly operation. Crafted from high-precision steel, these gears are heat-treated for rust resistance, wear resistance, and corrosion resistance. Item Type: RC Pinion Gear Set Material: Steel Color: Black Number of Teeth: 18T 19T 23T 24T Center Hole Diameter: Approx. 3.175mm / 0.13in 18T Size: Diameter Approx. 12 x 9mm / 0.47 x 0.35in 19T Size: Diameter Approx. 12.5 x 9mm / 0.5 x 0.35in 23T Size: Diameter Approx. 15.5 x 9mm / 0.6 x 0.35in 24T Size: Diameter Approx. 16 x 9mm / 0.63 x 0.35in Application: for Tamiya AV Motor Teeth TT01 TT02 TB02 TA05 RC Car Package Includes: 4 x Motor Gears 4 x Machine Screws 1 x Wrench