If you want to ruin your tires, buy them. All 4 are stuck and cannot be removed, a big pain. I had to replace the valve stems because they had melted into the brass fittings. If you look at the picture what they managed to tear off is rusty. These were bought in November and had to shell out a lot of money replacing valve stems. Contacted the company and said it was not their problem. They offered to refund $5 for more than $80 worth of damage caused by their product.