Hei guys,
Thanks for your kind comments.
To answer your questions:
There are VW Beetle tailpipes mounted on the end of the exhaust (same diameter as the pipe) Its not that loud actually but it does twitter on idle like a Beetle.
I got the guy who restored my tank to fit the rack as he had to cut the bottom out of the tank anyway.
I didn't get the speedo regeared, because as I recall the tyre size I'm using now, was near as dammit, the same height as what came off it, the original being a lower profile tyre.
I have the back wheel off at the moment. If I get a chance tonight I'll measure the tyre height and give you my rim spec as well.
Cheers,
Iain