Paul came over and suggested that I get a chain, which would determine the rear wheel position and therefore the bloody rear mudguard!
So in the end I used a calculator off RB Racing site for the proper chain length. Proper speed products for bonneville, they do great exhausts for us normal people and you can work out your rake and trail too.
http://www.rbracing-rsr.com/chainlength.html (try the eat shit button)
fucking about, diligently searching the net I ordered this loverly Iris X Ring Chain for £65, a good price and decided that I could do without the chain rivet breaker at £30
A little metal removal on the guard required as now only 1/8" Space to chain
Its big and heavy and looks the bollocks.
The same 1/8" space on the box, but may be ok as no flexing here?
The chain was ordered 2 links over size (108) (they had me fooled cos the box says 112 links and when fitted there were only two links over, so I thought the calculator was wrong - until I counted the links) and thats how many I'm going
Thats when I discovered that my old chain remover is not up to it and the rivet head has to be ground off for removal and the joining link rivets heads have to be rounded over. So I phone up and order the proper chain installation tool for another £30!