Hey Ron,

Use a tire jack to mount your tires, and you will never have a problem, regardless of the brand or model of tire you are using. I've used Conti GP 4000S tires for years, and they seem to have progressively become more difficult to mount. I used to be able to mount them just using my thumbs, now find myself breaking out the tire jack. Never never never use tire irons to mount a tire, or you will surely end up getting a pinch flat.