If you have an Uncle Bunt frame.. chances are that you're in the UK.... right..???
Uncle Bunt (John Reed) was responsible for many kool 750s in England back in the 60s and 70s..

The first think you need to do...
Measure the length of the neck...
7.5" is a 750 neck....
7.0" is an HD style neck (without cups)
5.5" is an HD style neck that uses chrome fork cups..
Once you have that figured out.. then we'll get the inside dims figured out..
Those are the most common necks associated with a750 frame.

Build it the way you want it ..... then learn how to ride it like you own it..
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