Roll out on a CRC

[grimidol]

how do you work this out and is there a on line chart ? 12 scale
cheers

[Getpip]

Go to www.gearchart.com (http://www.gearchart.com) and select pan car.
Put in your pinion/spur/tire diameter and let it do the rest.

[RudolfXC]

Or get an App for your phone to do it.

[SlowOne]

Or get an App for your phone to do it.Definitely the way to go - Heizer Software do it and it is so easy to use. Works for all electric cars, so never wasted whatever class you drive.