Description: 4 poles Hi-torque motor design. CNC machined 6061 T6 billet alumium heatsink can. High purity copper windings maximizes efficiency. High RPM ABEC5 oversized bearings. Universal fit all 1/8 brushless cars-multi-mounting system for M3 or M4 screws. Precision balanced rotor, smoothness for best reliability and maximum RPM Stator - Super Thin (0.2mm) laminations Removable/replaceable Precision engineered for maximum energy conversion ROAR legal Specification: RPM: 2000KV Max Current: 135A Max Watts: 2800W Can Size: 4076 Sensored: No Can Diameter: 40mm Can Length: 76mm Shaft Diameter: 5mm Shaft Length: 20mm Weight: 359g/12.7oz Max voltage: 7.4V(2S)-18.5V(5S) Package Includes: 1 x Sensorless Brushless Motor Note: Size for manual measurement, there may be a 0 to 1 cm error, belongs to the normal phenomenon. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, Thank you!