I have set of used Goodyear Duratracs for sale. Approximately 50,000 miles but still decent tread. One tire was punctured soon after I bought them and was patched with no issues or leaking. Also, one tire has a very small nail it it. I didn't even notice this until they were unmounted from the rim. I'm not sure how long it was there but it never leaked. Anyway, that's an easy plug that shouldn't be an issue. Price is $150 OBO. Local pick up in Ephrata, PA. thanks for looking.