I own an RS 250 *2000* *Harada* Model
I have just dyno run the little rocket and it kicks out 70bhp, 10bhp up from standard.
I have recently purchased an Arrow race exhaust system £500 and treated the bike to a Renthals Sprocket and Chain (£110) to lower the gearing slighty, to increase accleration. It now will hit 135 MPH (approx) in top gear . The bike did not need rejetting either because of the quality airbox and carburation as standard. The bikes brakes were also upgraded to braided hoses(£250). This road bike is now as close as you can get to any race bike being run by Aprilia UK so i'm told by one of their guys!
lucky bast*rd.. i want a 2-stroke for the street... if i loose my license it will come true.. an aprillia 50cc what ever that thing is. i knew a guy that used to bolt brake lights, turn signals, mirrors, & a license plate to a tz250 & ride on the street.. never got caught when i knew him.