Pololu Wheel 42x19mm Pair
This custom-designed white plastic wheel has a rubber tire measuring 1.65" (42 mm) in diameter and is designed to fit the output shafts on the micro and 15.5D metal gearmotors as well as the Solarbotics metal gear motors. Teeth on the hub optionally allow a reflectance sensor to be used for encoder feedback. These wheels are sold in pairs.