kev,
going to get wheel/swingarm bearings checked when i have the wheels off on saturday, will know more when i try the new boots fully after my usual 5 mile tyre scrub-in procedure!
Loz,
i think your right about needing a bigger rim for 200 tyre, i've gone for a 190 for exactly for what you've found.
Aren't 200 section tyres standard fit on the ZX12??
m1keyp,
should be ok with a deep sump!
[Edited on 21-7-2005 by chillo]