1、3650 3900KV brushless motor, maximum RPM: 50000, maximum voltage &lt;13V. 2、BEC output: 5.8V / 3A, 45A, 60A , 80A, 120A ESC type available for you to choose. 3、Brushless motor + ESC + heat sink + program card, replacement RC accessory. 4、RC Car brushless ESC program card, specially designed for brushless ESC. 5、Practical RC car modification accessory, improving comprehensive performance. Condition: 100% Brand New Item Type: RC Motor ESC Set Material: Alloy Optional ESC Type: 45A, 60A , 80A, 120A 3650 3900KV Motor Wattage: 900W Maximum Voltage: <13V Maximum Ampere: 69A KV (RPM/V) : 3900KV Maximum RPM: 50000 Diameter: Approx. 36mm / 1.42in Length: Approx. 50mm / 1.97in Axle Length: Approx. 15mm / 0.59in Axle Diameter: Approx. 3.175mm / 0.13inInner Axle Length: Approx. 5mm / 0.2in Plug Type: 4mm Golden banana plug 45A ESC: Continuous Current: 45A Burst Current: 180A Battery: 2-3S Lipo / 4-9S NiMH BEC Output: 5.8V / 3A Power Plug: T plug Male 60A ESC: Name: Waterproof ESC Continuous Current: 60A Burst Current: 320A Battery: 2-3S Lipo / 4-9S NiMH BEC Output: 5.8V / 3A Power Plug: T plug male Motor Plug: 4mm banana plug female 80A ESC: Continuous Current: 80A Burst Current: 480A Battery: 2-3S Lipo / 4-9S NiMH BEC Output: 5.8V / 3A Power Plug: T plug male Motor Plug: 4mm banana plug female 120A ESC: Continuous Current: 120A Burst Current: 480A / 10sec Battery: 2-3S Lipo / 4-12S NiMH BEC Output: 5.8V / 3A Power Plug: T plug Motor Plug: 5mm plug female Program Card: Features: Light weight Easy to use Portable designs RC Car brushless ESC program card, specially designed for brushless ESC 1 x Motor 1 x ESC 1 x Manual 1 x Program Card 1 x Heat Sink