AUSTAR 540 55T RC brushed motor with gear box is designed for 1/10 Axial SCX10 RC4WD D90 Crawler Climbing RC Car, which is made of high quality material and design. Higher output efficiency bring a stronger power and more excellent performance for your RC car. Do not hesitate and get one for your beloved RC car. Features: High power output, heatsink design, replaceable brushed motor High strength magnets for unmatched brush-motor performance High purity copper windings maximizes efficiency, dual-ball bearings design Precision balanced rotor, smoothness for best reliability and maximum RPM Excellent torque and long-run times, direct-solder wiring tabs for flexible soldering options This motor is assembled with gearbox and wiring, which is more convenient to use Any problem, please contact our store without hesitation. Honor to serve you Specifications: Brand: AUSTAR Name: Brushed Motor with Gear Box Type: 540 55T Max voltage: 12V Suggest battery: 7.2-7.4V battery RMP: 8000 Screw hole: 4 * M3 Motor dia: 36mm Motor length: 53mm Mount Type: Standard / CNC Machining Gear Ratio: 1:10 Note: There could be a few deviations due to manual measurement. Thank you for your understand Package Information: Package size: 12 * 8 * 5cm / 4.73 * 3.22 * 1.95in Package weight: 294g Poly bag package Package List: 1 * 540 55T Brushed Motor with Gear Box 1 * Screw Set