GoolRC 64DP 3.175mm 21T~25T Pinion Motor Gear for 1/10 RC Car Brushed Brushless MotorFeatures:Aluminum 7075 materialThey are available at stock in the long timeThe gears are milled by precisely Tanwai milling machineA M3 set screw(12.9 level)has been added to each pinion gearHard anodized on the gear surfaceSuit 1/10 carsSpecifications:Teeth: 21T，22T，23T，24T，25TDiametral Pitch: 64 DP21T Size: ￠9.1 * 9mm22T Size: ￠9.5 * 9mm23T Size: ￠9.8 * 9mm24T Size: ￠10.2 * 9mm25T Size: ￠10.6 * 9mmSuitable Shaft Diameter: 3.175mmPackage Information:Package size: 10 * 6 * 1.5cm / 4 * 2.4 * 0.6inPackage weight: 12g / 0.4ozAdhesive tape packagePackage List:1 * 64DP 3.175mm 21T Pinion Motor Gear1 * 64DP 3.175mm 22T Pinion Motor Gear1 * 64DP 3.175mm 23T Pinion Motor Gear1 * 64DP 3.175mm 24T Pinion Motor Gear1 * 64DP 3.175mm 25T Pinion Motor Gear