Thanks guys and most fascinating graphs Chris - who researched and tabled the results?
I can't justify spending heaps on rear sprockets and new chains as i've only just got the bike but switching front sprockets shouldn't be a hardship.
Will the speedo be affected or is it front wheel driven like my old Bandit? I believe there are converters available to correct indicated speeds on sprocket/crank driven speedos and wonder if i'll need one?
Thanks again. Oh, and glad to hear about the bullet-proofness of the clutches too

Most reassuring
