Motor Rules
 

What are the current rules for touring motor wise in most championships, is it mod, 10.5 and 17.5, or is it 13.5 etc?

Open Mod, 10.5/19t or 13.5/27t.

Nationals, it is Mod and Super Stock (10.5), clubs, depending on the venue, will go from Mod to 17.5, it mostly depends on track size and numbers, for your average indoor club, 13.5 and 17.5 is ample, if you got a larger track, 10.5 is pretty rapid-o