Very impressive Davesss, Not much then you have not driven
You can do the IAM test for motorbikes aswell !
I should have got the IAM certificate for motorbikes aswell when I had the chance but I never applied for it.
Being a military driving examiner for all vehicles and I mean all. Cars, Motorbikes, tracked vehicles, all hgv etc. We were awarded the IAM certificates without taking the actual test as they said we passed tests and did courses much more strict.
I still ride my Kawasaki, heres a picture of me taken about 33 years ago..........
I used to have a AJS trials bike at one time, Used to visit the trials in Fort William years back