This Tamiya gearbox is a good compromise between speed and power. Build for either 41.7:1 or 64.8:1 ratios this motor features quality polyacetal gears.
The High Speed Gear Box is a high efficiency motor assembly thats perfect for high speed applications.
The Planetary Gearset kit from Tamiya gives you a huge selection of ratios in one package
The Tamiya Twin Motor Gearbox is a compact 2-motor package with integrated gearboxes. If you have an application for 2 motors in a tidy package, this is the what you require!
You know and love the GM15, but hate the pulley-shaft? Ok, ok - here's a more standard "D" shaft configuration!
This is the tiniest gearmotor we've seen that's humanly affordable. What can you do with it? Ummm...