The 172: 1 Metal Gearmotor 25DX71L HP 6V 48C with Motor: DC; with encoder, with gearbox; HP; 6VDC; 6.5A; 56rpm; 106g is designed and manufactured by Pololu to provide a powerful DC motor with an encoder, integrated gearbox, and high torque output. This motor requires a 6V DC input, with a maximum current of 6.5A, and its recommended operating speed is 56rpm. The gearbox is a low-backlash metal gear reduction, with an output gear ratio of 172:1. The motor is lightweight, weighing only 106g. It is compatible with the Pololu Motor Driver 18v7 and Motor Driver 18v15 for motor control and digital feedback. Additionally, it can be used with various motor controllers and robotics platforms.