Quick Q ( new to forum)

hi there guys, nice forum u have going on here

well i just bought a thumpstar 125, the league in which im planning to race has a limit of 110 cc's

i also own an 06 sikk bike, the 125 super moto bike

i was looking at the ADA 88cc BBK's

is it possible for me to swap topends from 125 to 88 and downsize?

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