Solarbotics GMPW-Y Yellow Wheel
Brand: Pololu
This 2-5/8" plastic wheel (the original-style GMPW wheel) is made specifically for the Solarbotics GM2, GM3, GM8, and GM9 gearbox output shafts, and it also matches the Pololu plastic gearmotors. Each wheel comes with two black rubber bands: the tire and a spare.
$7.30 AUD, inc GST