umm dont?
if your interested in one ill sell you my alloy framed GP3 rep for cheap as with a spare motor. (40cc 5 port atm) I never use it anymore now i have the euros.
there a powerful little 40cc 3 port but they have a ton of problems on the clutch and pump side that needs fixing immediately. the pipe sucks as well.
the stock GRC style frames also come twisted if thats the "gp3" your looking at
the chinese just took the most complex design out there and did a crap job at translating it basically. everything is half arsed and really nothing works together in the end.
