Description: Precision balanced rotor, smoothness for best reliability and maximum RPM?High purity copper windings maximizes efficiency. High strength magnets for unmatched brush-motor performance?Excellent torque and long-run times,Direct-solder wiring tabs for flexible soldering options?Dual-ball bearings design?Water-proof and dust-proof. Multiple protections: Low voltage cut-off protection for battery / Over-heat protection / Throttle signal loss protection. Suit for 1/10 RC Car Axial SCX10 RC4WD D90 RC Crawler Car. Material;Metal Specification: Motor specifications: Type: 540 80T Max voltage: 7.2V Max current: 0.85A Screw hole: 4 x M3 RMP: 5300 Shaft dia: 3.17mm Shaft length: 12mm Motor dia: 36mm Motor length: 53mm ESC specifications: Continous current: 40A Burst current: 180A Power supply: 2-3S LiPo, 5-9S NiMh battery BEC: 6V/2A Item size: 45 x 30 x 28mm (without cable) Iten weight: 67g Size Chart: Package size: 10.5 x 8 x 6cm / 4.1 x3.2 x 2.4in Color?Black Package Includes: 1 X 540 80T Brushed Motor 1 X 40A Brushed ESC 2 X Motor Connecting Cable