These fab little motors are a great way to get yourself into combat robotics. Typically used for 150/450gm antweights, these brushed DC gems are quick and easy to work with. The standard 3mm D-shaft readily fits a number of wheel types, while the compact 10x12x26mm body consumes minimal space in your build. While no motor is battle proof, the metal gears help to minimise breakage. Three variants are available -
 
500 RPM: higher torque, 6v, no load: 40-100mA, stall current: <0.5A 
1000 RPM: higher speed, 6v, no load: 40-100mA, stall current: <0.5A
N20 Pro: 6v, connect directly to a PWM receiver
 
The N20 Pro has a taller end profile due to the attached driver/connector. Interface cable included. See images for reference. Dimension drawing here. Please ensure your receiver is adequately powered to supply the additional current draw of any directly driven servos or motors.