opinions?

Just bought on off flea bay. Just wanted to know peoples experiences and opinions on it. I know its a top brand and the website does claim decent gains. the big question is, does it sound good?

Hi. recently joined the RSV family and my new son came with a 190 rear (pilot sport on a 2000 model). I always thought these models came standard with a 180? in the aprilia manual it says it is optional but with the 190, the edge of the tyre is very very close to the chain (maybe 2-3mm) as a...