[35racer]

I did 4 years on a Yamaha TZ250... which is more race oriented than the RS250 aprilia's.

Anyway, I loved racing that bike (actually, those bikes... I had a 93 and then a 94)

Once you have a "perfect" bike... figure on a top end every 300 miles or so and a bottom end every 1500 to 2000 miles.

It's been a while, but I seem to recall the topends running in the $250 range and the bottomends in the $1500 range. However, the bottom ends can be rebuilt once at a cost of maybe $350. So rebuild one year and replace the next.

Then you need race gas which is now in the $8 range or so, I think?

I say "once you have a perfect bike" because most times when you buy these, they require a top end and bottom end right off the bat, so figure that cost into the purchase if the seller can't provide proof both are fresh.