Some weird and some rare:
Same basic engine configuration as that 1st photo held the motorcycle land speed record for 16 odd years.
Burto.
I remember seeing a pic of a drag bike years ago that had 4, honda 4 motors in it.
The turning circle for the last pic would be a bitch.
A few more; my fave is the modified Cross bones / WLA. And can anyone explain the second 'clutch lever' on Evel's bike? Decompression lever? Another brake maybe?
Now that's bling.
What a sweet sound that'd be coming across the snow. Looks evil; I love it.
Makes you wonder what might have been if Polaris had bought HD instead of Victory...
My guess would be 'brake' too.