As a verb, tread means the way someone is walking. As a noun, tread can mean the top of a stair (where you step on), or the tread of a tire.
Tread means walk or stomp over stuff.
If you mean tire tread depth, the minimum is 1.6mm.
You mean tyre tread
Tread wear indicator
Tread wear indicator
The ability of a human can tread water varies on many variables. The temperature of the water, a persons body fat, and the will to live. A marine has tread water for 22 hours in warm waters.
It sounds like the tread width in millimetres
Presuming you mean just the sides and not across the tread, then under-inflation is probably your problem
When you tread on the earth, you walk on it. Set one's foot down on top of.
tread
Don't tread on me! To tread upon the ground. Many people tread on he sidewalk each day.