Re: building kart frames
Justin,
sorry for the delay, i never saw your post until now. most karts are built out of 30mm or 32mm thick tubing. the chassis built for either heavier drivers or faster classes are built from all 32mm tubing. some are split between 30 and 32 and are called 31 chassis. i don't have anything that will show where 30 and 32 are used on the mutt chassis though. check our birel, crg, or tonykart websites for diagrams of their different chassis. most 125cc chassis are full 32mm.
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