Operating plastic model can be built for any of 6 gear ratios.
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...
This 1:192 Tiny Geared Pager Motor has an offset shaft much like the GM2, but is roughly half the size in every dimension. We suspect that these were the motors used for the Magic school bus in it's miniature state.
Call it a teeny, tiny little brother to the GM3 gearbox. With a suitably smaller appetite for power!