I havent used them, they look cool.  I believe you have to cut out your swingarm to use them.  Ive heard the wear is not great, like replace in a few thousand miles or so.  But I think with those you are going for a look not necessarily a performance tire or one that lasts a long time.

The tire was designed in the immediate post-WW2 1940s for touring machines. Had an Acme clone from the 1970s on my last Panhead. The tire was substandard in the 40s and is worse these days. Yes, Coker uses a much better compound than the earlier versions, but, the zig zag tread is next to useless on pavement. Great for dirt/gravel roads, beach riding, tolerable in light dry snow or on loose chip seal.

I have a couple ads for them from 1948 floating around the house somewhere. Daytona Beach sand races.

Look at Dunlop, Bridgestone, Heidenau for vintage tread, modern compound tires that actually work.