RC car gearing explained easy basics for Tamiya TT01

More speed or More torque , more top end or more acceleration - When racing the win can come from the smallest alteration, and gearing is a great way to get the best out of the car.
How to gear an RC car for speed and Performance…
We take a look at how gearing is measured and how it relates to the track. We start with the basics and move through to more advance information, so you will know what changes will do to the behavior of the car.

spur gear teeth /pinion teeth = gear ratio
gear ratio X internal gear ration = Final Drive ratio
final drive ratio X wheel circumference = Roll out
there are several online ratio calculators that you can use like this one.

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https://www.sodialed.com/utilities/rc...