Im having problems with gearbox noise when pulling away, it almost seems like there is a lot of slack to be taken up when letting the clutch out, then it suddenly seems to bite and i get a click but the clutch feels smooth? (sorry cant describe it properly) i have the bike on a stand, in 1st with the clutch out and i can move the back wheel about an inch/inch and half before the gearboxstops the movement is this the norm? i have just replaced the chain,front and back sprocket and cush drive so its not them,do you think somthing is wrong with gearbox? any help would be appreciated, many thanks Graham