I�ve just been asked about the points you raised there, to which I was going to respond at the time but then overlooked it: Yes, Italsistem did state that �their� rotary engine (called the Saetta) was 250cc. I�d bet a considerable sum of money that you�d find, if you actually measured it, its capacity was greater: by 44cc would be my guess. But the notion that the extraordinarily quirky, convoluted rules of one solitary national association � the MSA in this case � would be the slightest factor in designing a new engine really does overlook the bigger, global picture, which in the first instance doesn�t involve karting at all.
Yes of course it could easily be restricted to 35hp if any owner fancied doing that.
As for capacity limits, aren�t �Thunderkarts� 390cc and, for that matter, doesn�t 2x GX160 = 320? I�m sure that�s covered somehow � don�t worry about digging out the small print.
As I said, quirky, convoluted and to me a rulebook written with certain interests in mind: a quagmire not worth wading through.
Finally, you mentioned front brakes and their cost somewhere else here: again true, not cheap. But VT250 (i.e. Swissauto et al) racing on the continent uses them too.
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