Posted by Chris L on October 13, 1998 at 21:58:04:
In Reply to: How worn down can you let a tire go??? posted by Arn on October 13, 1998 at 10:12:51:
When talking about tires, they are measured in 32nds of an inch. A wear bar is as 2/32" tread depth (no longer a usable tire). If you have 1/4" of tread then you have 8/32" of tread on the tires (which is excellent wear for 50K). I would have someone look at them and properly measure them with a tread depth gauge. This is done by measuring the center, inside and outside of tread. Some other situations most people do not notice are dryrotting, runflat conditions (which looks like an indented ring worn out of the sidewall), and also cupping. All these should be considered when replacing tires.