When the wheels on the bus stop going round and round, they head into a repair shop like ours. We do lots of repairs on large equipment tyres because it can be so expensive to replace wheels, not to mention that it's often just hard to find spares for some less common sorts of industrial equipment. This site has lots of tips on maintaining tires and fixing small issues, so that you don't need to constantly replace tires or wheels. I think it will be useful for anyone who works on maintaining tires and wheels in an industrial or agricultural setting.