I like the look of a Supersprox 42 teeth rear tri-metal gold sprocket along with a 15 tooth front sprocket. Anyone had any experience of these and are they any good? If so, can you confirm the ones they have advertised for an RSV1000R factory 2004-10 will fit a 2006 RSV1000R (non-factory) with a standard 525 chain? Yeah I know, ask the manufacturer! I did but all they say is "we are quite sure that they are compatible". I don't want to spend in excess of £50 and be disappointed. Any help guys much appreciated.