Hi all and thanks for viewing my post. I have just bought an ST1100 (first time after years of sports tourers). The bike is in very good shape, never crashed or thrashed. At the risk of upsetting folks who have answered this question before does any know why it wobbles between 20 and 40 MPH? The wobble isnt so bad you cant ride it just mostly annoying. If I take my hand of the bars sometimes it feels like it is going to start tank slapping (I did this for testing purposes only). Somtimes it doesnt seem to do it at all. A friend of mine had an ST1100 and it did exactly the same thing. After changing pretty much the whole front end of the bike it was still wobbling. It currently has a pretty worn set of BT020's fitted. I have ordered a new set of tyres which arrive tomorrow. BT020 for the front but it seems they couldnt get a BT020 for the rear because it has been superseded by the BT021 so a BT021 for the rear. Is there anything I need to tell the local shop about fitting them? Thanks, Ian.