I put inner tubes in new tires I wanted to put in so they last longer. .I noticed that some people speak badly about lamps because of their malfunction. When I removed the tires from the rims, I found many sharp welds on the inside of the rim. I had to grind the blades and grind and paint the inside of the rim to prevent the tube from being punctured by the welding blades. Just go there to check them out.