A lot of guys will ride until they see cords on their tires. Completely worn out. This if fine if you ride where it never rains and the roads are perfectly clean and flat. For me I use the same trick as the car. if Abraham's head on a penny is completely visible I start shopping for tires. Do you really want to risk a blowout or flat at 70mph? Have you ever had the enjoyment of a blowout on a motorcycle at highway speeds? It's not fun. at 70mph the chances of you not dropping the bike and enjoying road rash are about 30%. It's not fun, the bike will buck from side to side and even ride what seems to be sideways. touching the rear break will cause the bike to swap sides, etc.. I got to enjoy this a very long time ago and it is STILL fresh in my head. Fresh enough to shake my head and call the kids on crotch rockets dumb for riding in shorts and t-shirt. I would have been history if it was not for the safety gear I was wearing.
Replace your tires please. It's not worth the excitement and waking up on the ground with your head and back hurting and your gloves full of blood is not fun.
