14 Pole 12 slot high-torque design, achieve optimal reliability. 2CNC machined billet, 6061-T6 aluminum heatsink, secondary oxidation treatment for exquisite appearance. 3High purity copper windings maximizes efficiency, heat resistance 180-200. 4High-speed ABEC5 ultra-durable sealed bearing with low friction, low noise, high precision and long-lasting use. 5Suitable for all 1/10, 1/8 brushless RC car - multiple mounting systems for M3 screws. Features: 4 Pole 12 slot high-torque design, achieve optimal reliability. CNC machined billet, 6061-T6 aluminum heatsink, secondary oxidation treatment for exquisite appearance. High purity copper windings maximizes efficiency, heat resistance 180-200. High-speed ABEC5 ultra-durable sealed bearing with low friction, low noise, high precision and long-lasting use. Suitable for all 1/10, 1/8 brushless RC car - multiple mounting systems for M3 screws. Accurate balanced rotor for smoothness, high accuracy and maximum RPM. The dynamic balance is controlled within 10mg, and the motor is removable and replaceable. Ultra-thin silicon steel sheet: excellent performance, high magnetic permeability, high silicon content, good insulation and heat resistance. Waterproof design ensures safe operation for maximum power conversion. Specification: Condition: 100% Brand New Item Type: RC Accessory Material: Metal Color: As Shown in the Picture Options: 2650KV, 2850KV Product KV(rpm/volt) Max Voltage Max Amps Rotor Poles Io Resostance Watts Max rpm Length Diameters Weight(g) Shaft(mm) Length of extend shaft Connector 3670 2650 18.5V 86A 4 4.2A 0.0069 1600 50000 65mm 36mm 277 5 15mm 4.0mm gold 3670 2850 12V 100A 4 3.7A 0.0058 1200 50000 65mm 36mm 277 5 15mm 4.0mm gold Weight: Approx. 334g Applicable Product: for all 1/10, 1/8 RC car Package List: 1 * Motor 1 * Manual