WHEEL (RIM) TYPES

Wheels can be categorized according to the cross-section shape. Passenger car tires usually employ a drop-centric rim. Here's a few examples of the main types.

The P.C.D. (Pitch Circle Diameter), oftern reffered to as the "bolt pattern," refers to the pitch circl diameter of the bolt holes. The value varies depending on the vehicle type. For example:

PASSENGER CAR: 114.3MM, 100MM and 139.7MM

TRUCK AND BUS: 225.25MM, 285MM, 285.75MM and 335MM

The number of bolt holes is usually four, five or six for passenger car tires. Some aluminum wheels available on the market are multi-hole whees, such as the nine-hole type that has for specialists to find out your P.C.D., but if you're more of a hands-on person then you can always use aftermarket toosl and measurements to do so.

The bolt pattern or bolt circle is the diameter of an imaginary circle formed by the centers of the wheels lugs. Bolt pattern can be four-, five-, six- or eight-lug holes. A bolt circle of 4x100 would indicate a four-lug pattern on a circle with a diameter of 100m.

inches

4 x 3.93

4 x 4.25

4 x 4.33

4 x 4.50

4 x 5.12

4 x 5.51

5 x 4.00

5 x 4.25

5 x 4.50

5 x 4.53

5 x 4.72

5 x 4.75

5 x 5x12

-Milimeters

- 4 x 100

- 4 x 107.95

- 4 x 110

- 4 x 114.3

- 4 x 130

- 4 x 140

- 5 x 100

- 5 x 107.95

When upsizing your rim on a vehicle it is also important to consider the following:

- Be sure that there is no contact with the tire and the inner fender liner.

- Be sure ther is no contact on any control arms, spring perch, or any other obstructions that may be there.

- Be sure that the case nut under the spring perch does not touch the top or inner sidewall of the tire. As the tires heat heat up they will expand so keep that in mind

- Be sure that the inner lips on your fender does not contact any part of the tire while driving straight, during compression or hard cornering.