The Tamiya 70167 features an all-plastic moulded gearbox and motor casing. Included is a FA-30 type 3-volt electric motor, axle with 2 crank arms, and tube of grease. The single gearbox is perfect if you like the gear ratio options of the HA70168 double gearbox but need just one motor or added flexibility in positioning multiple output shafts. The output shafts  in this kit are 3 mm hexagonal axles that are 100 mm from tip to tip.

The following gear ratios are user-selectable: 12.7:1 or 38.2:1 or 114.7:1 or 344.2:1.