Gearing Question

[alvinlwh]

On 1/9/2023 at 12:52 AM, Chang said:

Does the recommended gear ratio stated in the manual takes into consideration internal ratio?

There is no "recommended gear ratio" in the build manual, just worked out results to save on messy maths. The numbers take into account wheel sizes. The recommendation comes on some motor, however it depends on what the motor is meant for.

For example, on a T/RZ, the numbers are for touring cars whereas in a BZ, is for a buggy. These three motors are almost exactly the same yet their listed GR numbers will be different to take into the wheel sizes.

[gkatz]

Hi all;

i bumped into these vids. looks like a different gear ratio made all the difference. on the same motors, even silver can, going from 68T/22T spur/pinion to a 64T/29T gave the car almost 2x speed...

 

[gkatz]

here's an even better one:

maybe I should look at gearing a little deeper....

question: can I by a 64T spur and use the same 19T pinion I use on my regular motor? if the spur diameter different? (i have an adjustable motor mount I assume it will help use different spur and pinion diameters?)

[alvinlwh]

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