Ok, thanks!!! I have some R-1 rear sets on my VFR now, but they're too far back. Ideally I'd like 10-30mm of adjustment up and or back. I'll have to look into the 900RR rear sets and see if there are any available still. Doe it matter what year for the CBR 900RR, as I haven't seen too many options right now for these...Doug, fancy seeing you here.
I'm pretty sure that I know why you want these. let me just say, that I have tried to fit them, and yes, the holes can be opened up to make them fit. After you do that, the pegs will be lower than stock by a very discernable amount.
The best choice for your/our purposes is the 900RR rearsets. They fit, and if aftermarket, can raise the pegs like a rearset should.