Have 4 trikes. 3 of them hump on pavement and have 80s vintage Carlisle 22/11/8 tires, #4 trike has china atv tires, and rolls like a marble.. All the same trikes, I found the actual axle hub was 1/8 off from manufacturing process.. I got that true, but the tire itself is very much an oval. Would a person assume that there quality standards for atv/ ag tires was lower? How much can a person expect from a ballon tire? Im good with a different tire just been a Carlisle fan, till recently. Long story short is that I wanted to keep the vintage look etc, but cant ride it cuz square tires suck! lol looking for any advice , these are 20 mph trikes,.