Many thanks for all the replies all, it's much appreciated.
I'll try to keep this short - the MOT guy reckons it's dodgy bearings in the swingarm because when he grabbed hold of the top and bottom of the rear tyre and yanked it about there was a very slight clonking noise. He ruled out the rear wheel bearing and then thought it was the swingarm bearings and failed it. I had it all apart last night, there's definately no play in the rear wheel bearings or in the swing arm. Put it all back together and the noise was still there, took the brake caliper off and lo, noise gone! Does this make any sense?
Hopefully I can convince the MOT man this morning without having to take it off to prove it! Does seem a bit of a strange one as when everything at the back end is bolted up it should all move as one I spose but it does seem as though the bracket the caliper is bolted on can move around a wee bit...
thanks again,
A.
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