Thanks also to Swanny, Wiltshire Builders and Rabb! After some deliberation I settled for the Dunlop 404s and bought them from Wheelers and had Charlie Wheeler fit them. Full credit to Charles for a nice professional job. My word, what a Bas***d it is to fit these tyres to a Kawasaki Vulcan. I'm not sure which is more difficult .... removing the rear wheel from a Vulcan or grinding the valves of a BSA A10 .... both require the removal of the exhausts! . Richard