"Re the above the R1s did have J clocks but the R1 frame numbers were up to 1100.
Fair play spotting the clocks.
Looking up the link the R1 Clocks and top of the forks are identical to mine but the frame is an R2 by going with the no? Perhaps she was dropped and the front was replaced with an R1? It would be rare to get a front end off any scrapped bike though. God knows I have looked more than once
