Hey, Marcello...funny motorcycle tire story...from when I was still at Suzuki...
Remember the big experiment with 20" front tires (instead of 21") for dirt bikes a few years ago?
There was this photo shoot guy that was always grabbing used tires from the throw out bin at Suzuki.
I knew he was coming in to Suzuki the next day, so the night before I got some used 20" tires from the race team and threw them in the bin near the top where they were easy to reach. Sure enough the photo shoot guy grabbed them and took them home.
2 weeks later he is back, in the Suzuki Service Shop, telling the mechanics what a hard time he had changing his front tire...took him an hour to realize it was a 20" tire trying to put it on a 21" rim...he said he just thought it had a really stiff bead and needed more lube......LOL...evil...LOL