Hi guys, I have been out of RC racing for a while and will be running 12th scale again shortly. Because it has been so long ago I have decided to start of with a 17,5turns motor. The track that I will be running the car on is a medium sized carpet track and I was wondering if anyone could give me some advice on where to start off with the roll out of the car. I have read different threads where people suggest around 90mm for 17,5 is this correct? Thanks for all the help already!