My son is riding the 112cc in supermini, which is the same thing Tomac's running. But also as 150guy said, he's on a factory suzuki bike.
He wants a 125 because he's ready to move to something new, but zig, you're right, I could get him on the four stroke. Or I could just sell all the 85's and buy a 125 and 250F, but I wasn't planning on spending a whole bunch of money, but if I want him to do good, then I should i guess. But then again, i'd rather put the money towards a new motorhome. The rode-trip to Loreatta Lynn's was not fun in our old peice of crap RV.
I'll have to think about it.
I'd say mostly the reason he's not keepin up with them is not because of his equitment though, it's just he's not as fast as he should be.
At loreatta's tomac was running lap times around 2:07, and my kid fastest lap was like 2:22