RE: Is it a recognised truth . . .
keep those darn bikes off the airplane page - I can't concentrate!
My cousin has recently restored (perfect 10 restoration ) a Bonneville and my kid just picked up a clapped old Yamaha twin which he is restoring (I never thot anyone would restore a Yamaha).
First bike I ever really rode was a BSA Golden Rocket.
I still want a Hayabusa (the ultimate cheap thrill).