Go do what?
I did road race bikes at Ontario motorspeedway, Riverside International, and Willow Springs in the mid-70’s.
The only HDs I ever saw road racing was the factory team, and they were as different from profiling cruisers as they could be.
“did road race bikes at Ontario motorspeedway, Riverside International, and Willow Springs in the mid-70’s”
And none of ‘em weighed 650 lbs. Did they?