I made the choice to make a 10 year investment and bought 6 new namebrand (uniroyal) tires for my bus..
one of the things that kills tires is UV.. putting UV protectant on helps.. for steers if you drive your bus alot you will likely wear those out quick enough.. or you can buy a chinese tire like a samson or such (higher load ratings like H give you more Ply typically).. and then plan on replacing those every 5-7 years and make out OK..
on drives you can rotate to inners and outers to keep the UV off of the original outers.
when i got new tires on my bus we all know it was no joke that I had some weather cracking on my outer drives.. all 4 were re-caps and everyone put the fear of god in me about re-caps.. although thats a political thing here im not convinced about...
nevertheless when we took off my outer drives my inner drives were still in great looking condition.. they had never seen UV therefore no weather-cracking...
I went ahead and replaced them all anyway, just because I figured I would habve good years out of service.. and I knew I planedd to DRIVE my bus.. (ive run 8500 miles on it in 5 months or so)..
my new bus has 6 matching chionese (samson) tires on it that have no signs of cracking and the tread is good.. i havent looked at the age on them, however I plan to run them until I notice signs that something could go wrong..
Yes whenever I drive a bus I do a full walk around just like a commercial driver would do.. looking the whole bus over while it idles to warm up, that includes looking at the tires.. while I dont test the pressures every single day, i do it on a regular basis.
What is it? It's a tire cover. RV-related stores sell them. Many sizes. I put these on Millicent whenever she will be parked for a while. And smaller ones for the trailer.
But you can use anything -- plywood, for example. (Just try to make them look like it's not junk that the wind blew up against the bus.)