some one told me a great tip on this borad when i was preparing my bike dont mess with it untill you know you got a problem. i asked a lot about the frount suspension and now it clear to me after racing at cadwell i need progressive sring in them but first im going to try just replacing the oil in them. the work i did to my bike (583) was add scopion race system, kand n filter and a usual service i.e oil, filter new spark plugs, new belts and then braded brake lines frount and back and ecb double h pads i also had it run on a dyno and after one or two runs the guy said if fueling perfect dont mess. i also learnt from cadwell just how hard you can brake into a corner so iv just spent £60 on ebay so i can up grade to twin brakes on the frount. so my advise is to just run it and see could save your self some money |