How long the tire last after the threads come out?
Recently I have to change my summer tires as they have been using for 30k kms. The tire treads are 2/32 or 3/32 I guess.
After one tire got flat, I towed the car and replace the tire for $900 on that single tire. It is expensive as it is a performance tire. So I purchased other 3 tires in US, shipped to cross-border pickup location and I am going to US.
While I found that the driver front tire has some silver threads come out, not broken, but I can see a scratch on rubber. It is about 3 inch long.
The tire condition is bad, I know that, while when the first tire got flat, it is because the rubber has been fall off, and threads are continously been taking out.
As it is a top quality run-flat tire built for exotic cars, the tire did not explode on the highway and the air slowly leaked.
Generally, I only need to drive on those tires to cross the border and go back to replace. It is about a 140km*2 trip, including 120km*2 on the highway, limit 90km/h.
Is is safe to drive through this? Or if the threads have been exposed, the tire would not last this 280km trip? (It might be safe as the tire will go flat neither than exploding, but towing car across the border then for 140km is still terrible)