It wasn't always so, though. For many years it remained very small with just a handfull of entries. In fact, it didn't start out as a class in its own right. I seem to recall that originally, there was a class called "high power 100", and since the BT82 didn't have a rotary valve (the "rotary" class 8 being the dominant one at the time), the first ones were put in there. The other engines died a death, leaving the BT as the only engine in it, but on assorted chassis from school built to MSA, so the class was formalised like that. As class 8 died due to costs, TKM grew. Like you, I think they should keave the tyres as is.
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