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How can I find wheel specifications on the website?

Wheel Specifications Guide

Wheel specifications identify the technical details involved with fitment and safety. This article will explain how to locate the specifications chart and what type of useful information can be found.

The specification chart displays a wheel's technical details:

Where to Find Wheel Specifications

The Specifications Chart is located at the bottom of each wheel's product page. The specifications may differ by part number. 

Specifications include:

  • Size

  • Bolt Pattern

  • Backspace

  • Offset

  • Center Bore

  • Wheel Weight

  • Load Rating

  • Lip Size

If the chart seems incomplete or is missing information, there's a great chance the wheel is custom-built and made-to-order. Customers will provide the desired specs at the time of the order.

One or more of these indicators identify the potential for a custom wheel:

  • Bolt pattern displayed as "Blank",

  • Backspace is missing information

  • Offset is displayed as "XXmm". 

 

Bolt Pattern

The bolt pattern is described as the number of lug nuts per wheel and the diameter of the imaginary circle they form:

Bolt patterns are written as:

  • Example: 5x114.3 (number of lugs x the diameter of the circle)

The wheel’s bolt pattern must match the vehicle application. If you need assistance identifying your bolt pattern please read this additional article - What is a bolt pattern and how is it measured?  

Backspacing

Backspace is the distance in inches from the edge of the rear flange to the mounting surface. 

Using the correct backspace is critical to ensure no clearance issues with:

  • Brakes

  • Suspension

  • Steering components

  • Fender 

For more on backspace check out this article: What backspace or offset do I need?

Offset

Offset is the distance in millimeters from the wheel’s imaginary centerline to the mounting pad and cannot be physically measured.    

 

Offset types:

  • Positive offset: wheel sits further inward

  • Zero offset: mounting surface is centered in the wheel

  • Negative offset: wheel sits further outward

Offset will impact:

  • Fender clearance

  • Suspension clearance

  • Overall stance

Small changes in offset can significantly impact fitment. 

For more details about offset check out this article:  What backspace or offset do I need?

Center Bore

The wheel center bore is the diameter of the hole in the center of a wheel that fits directly onto the vehicle’s hub.

The wheel center bore must be the same size or larger than the vehicle hub for installation.

There are two types of wheel center bores as they relate to the vehicle:

  • Hub centric

  • Lug centric 

To learn more about hub centric and lug centric wheels check out this article: What is the difference between hub centric and lug centric  wheels?

The specifications chart includes the exact bore measurement. 

Wheel Weight

Wheel weight refers to the weight of the wheel without a tire installed.

Wheel weight may impact:

  • Handling and steering response

  • Acceleration and braking

  • Ride quality

Weight varies by:

  • Wheel design

  • Wheel size

  • Wheel construction type

  • Wheel material

Wheel weight is listed per wheel in the wheel specifications chart.

Wheel Load Rating

Wheel load rating is the maximum weight a single wheel is engineered to safely support under normal operating conditions without structural failure.

Key points about load ratings:

  • The wheel load rating must meet or exceed the vehicle’s load requirements

  • Towing, hauling or off-road use may require higher load ratings

Load rating requirements are based on Gross Axle Weight and NOT Gross Vehicle Weight.

The load rating can be found in the wheel specifications chart. 

Lip Size

Wheel lip size (depth) refers to the distance between the outer edge of a wheel's rim and the point where the face (wheel center) attaches. A greater lip depth typically indicates a more aggressive style, often achieved through lower offset or a wider wheel. 

The lip size may vary based on:

  • Wheel width

  • Offset/Backspace

  • Wheel design

Lip size is primarily a visual characteristic and does not determine fitment by itself. 

The Lip Size can be found in the wheel specifications chart.

Still Need Help?

Please submit a request or call a wheel specialist at 800.260.2522 Mon thru Fri 9:00am to 8:00pm EST

Having the following information ready helps speed up assistance:

  • Vehicle year, make, model, and trim

  • Wheel Style

  • Wheel Size