I enjoy racing vintage mx bikes. Some of the brands are Maico, Ossa ,Penton, Yamaha, Suzuki, Honda. Have a few road bikes V65 Magna, ZX11, GT 750 Triple, XS 650, BSA 650.
Also a couple Harleys. Enjoy them all.
Geery Davet would also run those large wired ops plugs that would take a lot to lite. Seen him pull the head off from his ops and pull the element out of the piston with needle nose plyers after the element broke off. Didn't want to arm wrestle him either.