2000 Infiniti QX4 Tire Size

The original tire size for your 2000 Infiniti QX4 is listed below. Tap on the box to view a color-coded explanation of the best Infiniti QX4 tire size.

P255/65R16 106S

Simplified Size:  255-65-16

Simplified size is useful for shopping and buying tires.

The original tire size for your 2000 Infiniti QX4 is P255/65R16 106S.  A color-coded explanation of the 2000 Infiniti QX4's tire size is shown below.

P

This letter denotes the intended use of the tire.

PPassenger Vehicle
LTLight Truck
CCommercial Vehicle
255

This number indicates that your tire has a width of 255 millimeters.

65

This number means that your tire has an aspect ratio of 65%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 65% of the width.  In this case, the sidewall height works out to be 165 millimeters.

R

This letter denotes how your tire was constructed.  Radial is the standard construction method for about 99% of all tires sold today.

RRadial
BBias Belt
DDiagonal
16

The tire size was designed to fit rims or wheels that are 16 inches in diameter.

106

This tire has a load index of 106, which means it's capable of carrying a load of 2090 pounds (950 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

S

This tire has a speed rating of S, which means 111 mph (180 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.