There are several options for aftermarket gears to slow down your tank. For a while now the Mato 3:1 brass gears have been out and are pretty popular. As far as the newer Taigen / HL style black steel gears the 4:1 gears are very good and I have several in my heavier tanks. You can tell the difference in that the 4:1 gears have an extra smaller gear towards the back of the assembly.

Any of these sets are available from most online tank vendors, check out rctank.de, welsh dragon models, immortal hobbies, TankArmy, and a bunch of guys on eBay too. I've ordered from all of these fellas and they're great vendors.


...as for the actual ratio.. it's been asked many times and the answer is basically... who knows...!! The reduction gears will slow your tank by a third and up to about a half depending on what you install. Lately I've been recommending the steel 4:1s because they are tough and simple to work with.