Saab 2007 owner manual Tire markings, Tire load index, Speed ratings, TIN-code

230 Car care and technical information

Aspect ratio: A two-digit number that indi- cates the tire height-to-width measure- ments. For example, if the tire size aspect ratio is “55”, as shown in item “C” of the illus- tration, it would mean that the tire´s sidewall is 55% as high as it is wide.

Belt Rating: A letter code is used to indicate the type of ply construction in the tire. The letter “R” means radial ply construction; the letter “D” means diagonal or bias ply con- struction; and the letter “B” means belted-bias ply construction.

Rim Diameter: Diameter of the wheel in inches.

Load range: The load range represents the load carry capacity a tire is certified to carry.

Speed Rating: The maximum speed that a tire is certified to carry a load. Speed ratings range from “A” to “Z”.

Tire markings

An example of the meaning of the different markings in a tire size is given below for a tire size of:

215/55 R16 93 V

215 Tire section width, mm

55Aspect ratio, i.e. the section height is 55 % of the section width

R Radial ply

16Wheel rim diameter 16 in at bead seats

93Tire load code V Speed marking

Tire load index

91Tire approved for max. 1355 lbs. (615 kg)

93Max. 1433 lbs (650 kg)

94Max. 1477 lbs (670 kg)

Speed ratings

QTire approved for speeds up to 100 mph (160 km/h)

SMax. 112 mph (180 km/h)

TMax. 118 mph (190 km/h)

HMax. 130 mph (210 km/h)

VMax. 150 mph (240 km/h)

WMax. 167 mph (270 km/h)

YMax. 186 mph (300 km/h)

TIN-code

a Manufacturer´s Identification Mark

b Tire Size

c Tire Type Code

d Date of Manufacture