has anyone got the height of a tiger rollbar as i am making my own (slowly) and the book has no dims for one

Unless you are a short arse you wouldn't want to use their dimensions anyway. Sit in the thing and measure to clear your head by a good 2". My Tiger one was poorly bent. I'm going to make one from seamless tube so that so that it cold be used in some motorpost events.

mine has a 38cm rise on it...

roll bar that is