I am wondering how safe is it really to patch a front tire. I just put a fresh set of dunlops 208's and my front tire has a small punture.... the bad thing .....50 miles on it!!!! I still have the knobs and green lines on the damn thing. I still have the original front tire but i heard its not safe to mix and match tires. Keep in mind i do top out the bike once in a while. any feed back and ideals would be nice before i spend more money on tires.