Originally Posted by Crashby

I use tire diameter split as a tuning aid. If you need more steering, reduce the split. If you need less steering, increase the split. 2mm difference is a good starting point for 1/12th.

Originally Posted by cyrrus

interesting info, so when you reduce the split is this referring to same size front to rear, and less steering front smaller and larger rear's, I've never though about using tire size as a tuning ad.

Thanks