Hi, been looking for spur gears for my V1RR and whilst there are a few available the prices can vary from cheap old stock sellouts to new stock new price ones and all the genuine article.

On the other hand the V1RRR has a lot of different makers of the spur gears with different types such as the derilin or whatever it is ones.
I have seen some under $3 on some sites, so it got me thinking could i convert it over.

The spur gears, and hub look the same with same looking mounting holes for the oneway, but i beleive the V1RRR uses a different finer pitch of 0.8m.

So can i switch pinons to the 0.8m type and run the V1RRR spur gears on my V1RR?

Also what does 0.8m mean, how is the pitch measured?

A friend has a FW05T that has a finer pitch, would that be the same 0.8m thing?

How many Different Pitches are used on the main Nitro On -road cars, is it the just the standard no name picth and then the maybe newer 0.8m stuff?

Any insight would be appreciated.

Cheers~