1Highpurity copper windings and sealed bearings, it is durable and has low friction and low noise. 2The rotor is precisely balanced, with high finish, good stability, excellent performance, and easy to disassemble and replace. 3540 motor has high torque, twoway bearings, strong magnetic force, low heat generation and high power. 4Excellent torque and long life, direct welding wiring guide, providing flexible welding options. 5It is fit for Axial SCX10 / TRX4 D90 / Redcat / GEN8 RC Crawler / Monster Trucks / Drift Cars. Item Type: 540 Brushed Motor 320A ESC Combo Material: Iron + Plastic + Copper Product Color: As Pictures ShownProduct Weight: Approx. 219g / 7.7oz Application: Fit for Axial SCX10 / TRX4 D90 / Redcat / GEN8 RC Crawler / Monster Trucks / Drift Car Motor: Length: Approx. 50mm / 2.0in Diameter: Approx. 36mm / 1.4in Shaft Length: Approx. 12mm / 0.5in Shaft Diameter: Approx. 3.175mm / 0.1in Operating Voltage: 7.2-7.4V Maximum Voltage: 12V ESC: Direct Current: 60AExplosion Current: 320APower Supply: 2-3 S Lithium Battery, Ni-mh Battery 5-9 S BEC5 V / 2AESC Size: Approx. 43x29x27mm / 1.7x1.1x1.1in (no cable) No-Load Current: 1.4A Continuous Output Current: 320A (forward), 160A (back), 270A (brake) Voltage No-Load Speed 7.2 V: 35T 12000 rpm / 45T 10000 rpm / 55T 8000 rpm 1 x540BrushedMotor 1 x320ABrushedESC 2 xWiring 1. Please allow 1& 8209;3mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.