I'm reaching or just about reached the Tire Thread mark on my rear tires.

I know it depends on your dirving habits and what kinds of tires.

But around what range of tread or how many more miles do I have left to use it all up with out blowing the tires up.

 

Between 100-1230 miles.

Take a picture of the tread. If it looks low enough, it probably is. It doesn't have to be bald to lose much of its traction.

 

the wear marks are set to indicate a tread depth of 2/32. Typical new tires have around 10-12/32. If the tires are at the wear indicators it's time for new shoes!!