Features: High - purity copper windings, ensuring maximize efficiency.Fast speed super large bearing, designed for 1/10 RC car boat. Precisely balanced rotor, having stable and excellent performance. Helping to better control your remote control car or boat model. Exquisite workmanship, meeting your precise motion control needs. Specifications: Condition: 100% Brand NewMaterial: Metal magnetVoltage (Max support): 12 VBattery: 7.2-7.4vSize: Approx. 36x50mm / 1.42x1.97 inches (diameter x length)Shaft length: 10mm / 0.39 inShaft diameter: 3.175mm / 0.125 inCable length: 108mm / 4.25inOptional Type: 23T, 35T, 45T, 55T, 60T23T: Voltage: 7.2 -12 VSuitable for 1/10 car model and ship modelOutside diameter: 50*36mmAxle diameter: 3.175mmAxle length: 10mmRPM: 18300D shaft35T: Voltage (Max support): 12 VSuitable for 1/10 car model and ship modelOutside diameter: 50*36mmAxle diameter: 3.175mmAxle length: 10mmRPM: 12000D shaftBattery: recommended 7.2-7.4V battery45T: Voltage (Max support): 12 VSuitable for 1/10 car model and ship modelOutside diameter: 50*36mmAxle diameter: 3.175mmAxle length: 10mmRPM: 10000D shaftBattery: recommended 7.2-7.4V battery55T: Voltage (Max support): 12 VSuitable for 1/10 car model and ship modelOutside diameter: 50*36mmAxle diameter: 3.175mmAxle length: 10mmRPM: 8000 10%rpm (Test after 1 minute operation)D shaftBattery: recommended 7.2-7.4V battery60T: Voltage (Max support): 12 VSuitable for 1/10 car model and ship modelOutside diameter: 50*36mmAxle diameter: 3.175mmAxle length: 10mmRPM: 6800 10%rpm (Test after 1 minute operation)D shaftBattery: recommended 7.2-7.4V batteryPackage List:1 x 540 Motor2 x Cable Motor Wire.