Thanks, Michael, but too new and needs one of their digital Speedos so around £250 all told??
Cheers for the good info, Bill. You're right, I'll pass, as I like a reasonably accurate speedo.
At the moment, it's between these 2;
A 7" that someone had in storage for their Norton;
A wipac which uses a 5 1/2" reflector (so 6" overall?)
Any advice, comments gratefully received