Tire equivalence

Rules to follow

• Mount tires with the same exterior diameter (or slightly smaller)
• The speedometer must not read below the actual speed. When travelling at 25 to 75 mph, the speedometer can read up to 10% more than the actual speed
• Mount tires with a load index equal to or greater than that of the original tires
• Mount tires with a speed index equal to or greater than that of the original tires (except for snow tires. More information)
• Check to see that rim width and diameter are suitable for the tire
• When using different front and rear tire dimensions on SUVs and vehicles equiped with anti-lock and anti-slip systems (ABS, ASR), the distance travelled over one turn must be taken into account
• Make sure that any dimension changes you plan to make do not pose mechanical problems (required space, extending beyond the vehicle body...)
• strong>Check with a motor vehicle inspection station that the dimensions of the mounted tires are approved for the use of your vehicle.

Equivalency tables

The below table provides you the tire widths you can fit compared to the rim width.
e.g. for an 6" rim, tires whose width is 175, 185, 195 or 205 can be fitted.

Equivalency table

Rim width	Minimum tire width	Ideal tire width	Maximum tire width
5,0 Inches	155 mm	165 or 175 mm	185 mm
5,5 Inches	165 mm	175 or 185 mm	195 mm
6,0 Inches	175 mm	185 or 195 mm	205 mm
6,5 Inches	185 mm	195 or 205 mm	215 mm
7,0 Inches	195 mm	205 or 215 mm	225 mm
7,5 Inches	205 mm	215 or 225 mm	235 mm
8,0 Inches	215 mm	225 or 235 mm	245 mm
8,5 Inches	225 mm	235 or 245 mm	255 mm
9,0 Inches	235 mm	245 or 255 mm	265 mm
9,5 Inches	245 mm	255 or 265 mm	275 mm
10,0 Inches	255 mm	265 or 275 mm	285 mm
10,5 Inches	265 mm	275 or 285 mm	295 mm
11,0 Inches	275 mm	285 or 295 mm	305 mm
11,5 Inches	285 mm	295 or 305 mm	315 mm
12,0 Inches	295 mm	305 or 315 mm	325 mm
12,5 Inches	305 mm	315 or 325 mm	335 mm