today i was in canadian tire for service my car. examiner said that i have car tires with tread depth 4. what is mean by this number. i have to change tires now as he said. what is tread depth number for a new tire. can any body tell me what tread depth atleast for a tire if i bought a used tire.How we measure tread depth of tires exactly?http://www.tirerack.com/tires/tiretech/t
http://www.carcare.org/Tires_Wheels/treaHow we measure tread depth of tires exactly?in short terms it means more than 75% worn out this is the shortest way i can put it,most places use a penny,and if you can see Lincolns hair its worn out,this an old method but still used today at most shopsHow we measure tread depth of tires exactly?im not sure about the number 4 but remember canadians are on the metric systym. as a rule of thumb you can take a penny place head down in the grooves of your tire and if you cant see the top of the head your fine, but if you see the outline of the head or close replaceHow we measure tread depth of tires exactly?Brand new car tires have an average tread depth of 11/32. Continentals and other top shelf brands have a tick more.
Truck tires and/or SUV tires have varying depths depending upon their size. 18/32 isn't unusual for a big brand new 4X4 tire.
Tread bars generally become level with the tread at 3/32 of an inch.
I got my first tread depth gauge as a gift when I completed my training as a Claims Representative at the Auto Club, but when I misplaced it I purchased one at Pioneer Mercantile, a well-equipped auto parts store in Bakersfield, California for less than $3.
As an independent auto damage appraiser I include the tread depth on every tire on every car I inspect.How we measure tread depth of tires exactly?just use a lincoln penny.if you cant see all of lincolns head then the tread is still good.
