2006 Scion xB Tire Size

The original tire size for your 2006 Scion xB is listed below. Tap on the box to view a color-coded explanation of the best Scion xB tire size.

P185/60R15 84T

Simplified Size:  185-60-15

Simplified size is useful for shopping and buying tires.

The original tire size for your 2006 Scion xB is P185/60R15 84T.  A color-coded explanation of the 2006 Scion xB's tire size is shown below.

P

This letter denotes the intended use of the tire.

PPassenger Vehicle
LTLight Truck
CCommercial Vehicle
185

This number indicates that your tire has a width of 185 millimeters.

60

This number means that your tire has an aspect ratio of 60%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 60% of the width.  In this case, the sidewall height works out to be 111 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
15

The tire size was designed to fit rims or wheels that are 15 inches in diameter.

84

This tire has a load index of 84, which means it's capable of carrying a load of 1100 pounds (500 kg) or less.  A higher number means the tire can carry more weight.  A lower number means the opposite.

T

This tire has a speed rating of T, which means 118 mph (190 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.