Wheels Articles Useful information

Cover those rims with wheel covers!

So, what are wheel covers? This article is going to be about the covers that cover the whole rim, not the center caps (center emblems) which mounts over the center bore (used with alloy wheels).

Bolt pattern in metric or inches

Bolt pattern in metric or inches

Today we're going to talk about bolt pattern in metric and inches,(or should we say bolt pattern, same thing though).

What are hub centric rings?

What are hub centric rings?

Hi! Awesome of you to "roll by" and check out this wheel-related article!

 

How to Identify the correct lug nut and wheel lock for your vehicle

 There are five main components to identify the correct lug nut or wheel lock:

  • Thread Size
  • Thread Pitch
  • Seat Type
  • Length/Dimensions
  • Finish/Color

 

How to read sidewall tire numbers and markings

How to read sidewall tire numbers and markings

The sidewall of your tires is filled with important information that tells you everything you need to know about your tire. The numbers can be a bit overwhelming to the untrained eye, so the best way to understand tire markings is to take an example and break it down, bit by bit.

Below are tips and information to help you learn how to read tire size and other tire markings commonly seen in the U.S.

Centre Bore

Centre Bore

The centre bore is the size of the hole in the centre of the wheel where the spigot fits through.  The centre bore, (also known as spigot size), is the diameter of this hole, usually measured in millimetres.

Bolt Pattern/Pitch Circle Diameter (PCD)

Bolt Pattern/Pitch Circle Diameter (PCD)

PCD (Pitch Circle Diameter) is the measurement of the diameter of the imaginary circle drawn through all of the wheel bolts or studs on a wheel.  It is also known as the 'bolt circle'.

Offset

Offset

The offset of a vehicle's wheel is the distance between the centerline of the wheel and the plane of the hub-mounting surface of the wheel. It can thus be either positive or negative, and is typically measured in millimeters. Offset has a significant effect on many elements of a vehicle's suspension, including suspension geometry, clearance between the tire and suspension elements, the scrub radius of the steering system, and visually, the width of the wheel faces relative to the car's bodywork.

Tire Sizing System

Tire Sizing System

There are a number of different systems in use today that describe the various tire sizes used on performance, passenger and light truck vehicles. An attempt is currently underway to develop a worldwide system, but presently you must be familiar with several different systems.

How to change a tire

How to change a tire

Have you ever been stuck on the side of the road with a flat tire? Do you want to be able to change a tire without having to ask for help?

Fortunately, changing a tire is a pretty simple task, provided you're prepared and willing to exert a little effort.