This is my highly dependable yard trailer. I got tired of dealing with a flat tire every time I wanted to use it. One tire had a real tiny crack in the side wall that was leaking. I ordered a pair of 20x8x8 tubes from Amazon. The wheels were in real good shape other than some weld splatter. I sanded down all the bumps and coated with some junk Rustoleum oil based paint with a brush. After checking the inside of the tire for problems I dusted the inside of the tire with baby powder then rubbed some Dawn dish detergent on the inside rim. All good to go now.