im looking at mopedshop.com, just snooping around in the big bore kits. theres a 60 cc athena, and a 70 cc (both for the tomos a35 engine) . which is better? price isnt an issue-they practically cost the same amount. i believe they cost $340 and $360, respectively.
i was also looking at a 70cc airsal kit that uses the stock cylinder head and intake manifold, but then i realized it wasnt compatible with biturbo exhausts???? only $135, but im not ditching my exhaust for a technigas or something.
and also thanks everyone for the feedback on the tires-it helped me alot.