1983 Rolls-Royce Silver Spur Tire Size

The original tire size for your 1983 Rolls-Royce Silver Spur is listed below. Tap on the box to view a color-coded explanation of the best Rolls-Royce Silver Spur tire size.

235/70HR15

Simplified Size:  235-70-15

Simplified size is useful for shopping and buying tires.

The original tire size for your 1983 Rolls-Royce Silver Spur is 235/70HR15.  A color-coded explanation of the 1983 Rolls-Royce Silver Spur's tire size is shown below.

235

This number indicates that your tire has a width of 235 millimeters.

70

This number means that your tire has an aspect ratio of 70%.  In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 70% of the width.  In this case, the sidewall height works out to be 164 millimeters.

H

This tire has a speed rating of H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes.  A higher speed becomes dangerous.

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.