Not sure what all the fuss is about... they work great. Mount them on a 4.50-16 rim, install on the front of your T-bucket or Model A roadster and go for a drive...
Oh, you meant for motorcycle use. God awful handling, slicker than greased glass when they get wet or on sand. Anything lighter than a full dress Indian Roadmaster (twin or inline 4 cylinder) or full dress Panhead Duo-glide isn't going to make them work right. They work just fine for slow, heavy bikes. The only modern bikes you can safely install them on are Road Kings, Heritage Softails, 1500 Drifter and 1500/1600 Vulcan Classics. You can use them on the rear of barhoppers if you rock a 90/90-19 or 80/90-21 front wheel, but the handling still sucks. I had a Speedmaster 3.00-21 front and Acme 5.00-16 replica of that old Firestone tread on my Panhead... not very stable, and it was in a proper rigid frame.
Putting those tires on a "modern" lightweight factory metric is a bad idea, putting them on a cut down is a good way to get yourself killed. Save the vintage touring tires for the bikes big enough to properly load them.