HPI Nitro RS4 EVO 3 - Spur/Pinion Gear Question

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gandalfnz

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Guys

I found a 19T first gear pinion gear at a local shop, but I am not sure if it will mesh properly with the stock Spur gears?
Can someone please shed some light on this?
If I use a 19T pinion, do I also need to change the Spur, or not?

Stock gears are 18 - 47 first gear, and 22 - 43 for the second gear.

Much appreciated!

Pinion I would like to install is

1654064829808.png



1654064862123.png
 
You can't just change one bud.
 
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