brushless 1/5 4wd conversion about to begin! couple questions.

[florianz]

I'm afraid but I also think you should switch to mod one gearing. it's easier to get the right spur gear, and further the difference between eg. a 12 and 13t pinion is less then with mod 1.5.

there is a certain calculation to find out the number of teeth of a spur gear, with a specific diameter. but dunno that calc. just measure the maiximum diameter that would fit.