I have a new Grizzly G0514X2 bandsaw and it has some vibrations when running at the higher speed. After playing with it some I decided to remove the bandsaw tires and run the blade that came with it. I didn't adjust the guides and didn't cut anything with it. The result (I can post the videos later) is that I can balance a nickle on it's edge without the urethane tires on the wheels (probably could balance a dime) with the tires on there's no way. The vibrations are far too bad to even come close.
I'll call up Grizzly and get some spare tires but I was wondering about Blue Max or Sulphur Grove Tool brand. Both say they are made in the USA. I did a search but I didn't see anyone who has been using them for some time. When you buy Grizzly you know you are buying Chinese or Taiwanese made parts. Not that it's a bad thing but for $50ish if I can replace them with a product that will be superior why not?