Features 1、High - purity copper windings, ensuring maximize efficiency. 2、Fast speed super large bearing, designed for 1/10 RC car boat. 3、Precisely balanced rotor, having stable and excellent performance. 4、Helping to better control your remote control car or boat model. 5、Exquisite workmanship, meeting your precise motion control needs. Specification 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 New Material: Metal magnet Voltage (Max support): 12 V Battery: 7.2-7.4v Size: Approx. 36x50mm / 1.42x1.97 inches (diameter x length) Shaft length: 10mm / 0.39 in Shaft diameter: 3.175mm / 0.125 in Cable length: 108mm / 4.25in Optional Type: 23T, 35T, 45T, 55T, 60T 23T: Voltage: 7.2 -12 V Suitable for 1/10 car model and ship model Outside diameter: 50*36mm Axle diameter: 3.175mm Axle length: 10mm RPM: 18300 D shaft 35T: Voltage (Max support): 12 V Suitable for 1/10 car model and ship model Outside diameter: 50*36mm Axle diameter: 3.175mm Axle length: 10mm RPM: 12000 D shaft Battery: recommended 7.2-7.4V battery 45T: Voltage (Max support): 12 V Suitable for 1/10 car model and ship model Outside diameter: 50*36mm Axle diameter: 3.175mm Axle length: 10mm RPM: 10000 D shaft Battery: recommended 7.2-7.4V battery 55T: Voltage (Max support): 12 V Suitable for 1/10 car model and ship model Outside diameter: 50*36mm Axle diameter: 3.175mm Axle length: 10mm RPM: 8000 ±10%rpm (Test after 1 minute operation) D shaft Battery: recommended 7.2-7.4V battery 60T: Voltage (Max support): 12 V Suitable for 1/10 car model and ship model Outside diameter: 50*36mm Axle diameter: 3.175mm Axle length: 10mm RPM: 6800 ±10%rpm (Test after 1 minute operation) D shaft Battery: recommended 7.2-7.4V battery Package List: 1 x 540 Motor 2 x Cable Motor Wire Package List