After 20 years of putting up with pneumatic tires that kept deflating on my homemade welding truck, I finally made the switch to puncture proof tyres. . See attached picture. The new tire is mounted, the old (completely shot) pneumatic tire is on the ground on the right. After a long search I finally found a spare tire and wheel with a 3/4" bore and a 2.25" offset hub. It took 5 minutes to replace the old one with the new one. These are really well made tires and they will give me life until I'm gone.