Thanks for the rules and link. It was so obvious it eluded me
If anything I feel it only strengthens my arguement.
Is the Zero S/DS Homologated? Yes. Is it a "Purpose built race bike"? Nope.
Is the Empulse Homologated? Yes. Is it a "Purpose built race bike"? Nope.
Is the TTX Homologated? Maybe, I don't know, is it? Is it a "Purpose built race bike"? Probably. I mean what else would you call it?
See what I mean by "stretching it"?
Ya got me stumped on the MMX. I mean, are all dedicated MX bikes assumed to be "Purpose built race bikes"? I assume the MX is as homologated as the TTX. Neither are intended for street-use, yet both are legal for sale in the US.
Refuel is all about fun, and I think we can all agree everyone came away a winner ;p