How Can You Tell What Size Tire It Is That Is On My tire? Can You Tell By The Number That Are On The Tire To BE Completely Accurate?
2007-08-09 06:31:42 · 5 answers · asked by zbangbangz 1 in Cars & Transportation ➔ Car Makes ➔ Toyota
and is the final number the number that would be the tire size?
2007-08-09 08:18:23 · update #1
look at the drivers side door jam tire the recommended size is listed there.
2007-08-09 09:41:26 · answer #1 · answered by Steve 5 3 · 0⤊ 0⤋
Tire Size & Service Description (e.g. P185/70R13 89T):
P Tires with a P are using a P-Metric designation, which is the American market sizing standard started in 1976. All P-Metric tires are engineered to standards of T&RA (Tire and Rim Association). The "P" stands for "Passenger" vehicle. If there is no "P", the tire is engineered to ETRTO (European Tire and Rim Technical Organization) standards and is considered a metric tire. Standards by ETRTO and T&RA have evolved together, and are virtually interchangable.
185 The first number on the tire size is the cross-section width. This value is the width of the tire from side-wall to side-wall as measured in millimeters. This measurement is usually obtained from the bead of the tire (where the tire mounts to the rim.)
/70 The two digit number just to the right of the slash (/) is what is referred to as the "aspect ratio". Not a 'specific length', this value describes the distance between the bead of the tire to the tread as compared to the cross-section width. This is viewed as a percentage value. (e.g. P185/70R13 has an aspect ratio of 70% of 185mm....or 129.5mm.). Lower apect ratios confer a stiffer ride and increased control than a similar sized tire with a larger aspect ratio. But larger aspect ratios tend to be more absorbant and add to a smooth road ride.
R This letter indicates the type of ply construction in the tire's casing or carcass. "R" means radial. "D" means diagonal, referring to bias tires. "B" means belted for belted-bias tires. Never mix radial tires with any other constru ction on a car.
13 Rim Diameter. It is the diameter of the bead seat in the rim. Most tires are built to inch standards for rim diameters. However, some tires are built to millimetric rim dimensions. Always match the tire's rim diameter to the wheel rim diameter.
89 Load capacity. Refer to the load index chart of a tire guide to find the maximum load carrying capacity of the tire.
T Speed Rating. This designation should be compared to the Speed Rating Chart to view the recommended maximum speed for this tire.
2007-08-11 16:32:20 · answer #2 · answered by Mike Rathbourne 3 · 0⤊ 0⤋
It is written right on the sidewall of the tire. something like 205/zr/35-17
2007-08-09 13:35:56 · answer #3 · answered by Fordman 7 · 0⤊ 0⤋
It should be on the sidewall and it's pretty accurate, mine is a 205/55R16.
2007-08-09 14:27:27 · answer #4 · answered by Yankee Micmac 5 · 0⤊ 0⤋
look on the tire geezze
2007-08-09 13:35:44 · answer #5 · answered by Anonymous · 0⤊ 0⤋