I've had offered up two tales by two fella's that spend a lot on their engines both of which were in chopper frames with 16" period wheel and both described how they dumped clutch in 4th and just held on and never lost till both of them tried it against dirt bikes on THE Gravel which after they got the leap ahead, THE Grit consummed them both. I hear exactly the same tale repeated routinely but with less desirable brands lost to the Marbles and Arrowheads. Personally if I ever find a sports car tire that can fit Peel I will jump all over that no matter the styling flake.
BTW TC rode out ahead of the Chevy Van packing the 3 engine bike, many states on a leg to the next show etc till back home again. He had a wool seat cushion IIRC.