08-10-12, 12:02 AM
As Darrsi has said the speedo runs from the front wheel on the FZS so no worries with that. Some (newer I believe) bikes run the speedo from the front sprocket so that would mess up the readings if you changed the sprockets.
In my opinion, the gearing is fine on the FZS as standard unless you intend to use it for something other than "normal" use. I'm lowering the gearing on mine to hopefully help with my Motogymkhana. It isn't really needed but I think it will help me with low speed manoeuvring as the engine revs will be higher and the on/off throttle snatch won't be such as issue - but I might be completely wrong.
In my opinion, the gearing is fine on the FZS as standard unless you intend to use it for something other than "normal" use. I'm lowering the gearing on mine to hopefully help with my Motogymkhana. It isn't really needed but I think it will help me with low speed manoeuvring as the engine revs will be higher and the on/off throttle snatch won't be such as issue - but I might be completely wrong.