How to Measure Your Trailer Wheel Bolt Pattern

Posted by Pete's Tire Barns on 8/24/2026 to Trailer

Choosing the right trailer wheel starts with knowing your bolt pattern. This measurement identifies how many wheel studs or bolt holes your trailer hub has and the diameter of the circle they form—also called the pitch circle diameter (PCD).

You only need to measure your trailer’s bolt pattern when selecting a replacement wheel or a complete wheel-and-tire assembly. If you are replacing only the tire and keeping your existing wheel, the bolt pattern does not affect tire fitment. However, you will still need to confirm the tire size, load capacity, and other tire specifications.

When bolt pattern matters

What you’re buying	Do you need the bolt pattern?	Why
Trailer tire only	Usually no	You need the existing tire size, load range, speed rating, and application requirements—not the wheel’s mounting pattern.
Trailer wheel only	Yes	The wheel’s number of lugs and bolt-circle diameter must match the trailer hub exactly.
Wheel-and-tire assembly	Yes	The tire may fit the wheel, but the wheel still needs to mount correctly to the trailer hub.
Spare tire on an existing wheel	Usually no	If you are reusing your current spare wheel, match the replacement tire to that wheel’s size and specifications.
Complete spare wheel-and-tire assembly	Yes	The spare wheel must match the trailer’s hub bolt pattern to be usable in an emergency.

Fortune ST101 Trailer Tires 3-Year, 24-Hour Roadside Assistance

Posted by Pete's Tire Barns on 2/23/2023 to Trailer

FORTUNE PREMIUM 24-HOUR ROADSIDE ASSISTANCE

In the event of a flat tire, you must call the toll-free number below. A qualified service provider will replace the tire with your inflated spare. If you do not carry an inflated spare and a tow or other services are necessary, a towing service will be provided to the nearest qualified repair facility at no expense to you up to $100 of service. You will be solely responsible for any charges incurred

above the $100 benefit limit. Emergency Roadside Assistance is available 24-hours a day, 365 days a year, anywhere in the U.S. or Canada on the Fortune ST01 or Fortune FST02 tires you have

purchased. This service is valid for three (3) years from the date of purchase. This assistance is for non-accident-related incidents only. Service is not available in areas where state providers are exclusively utilized. The national average time per response for service normally does not exceed sixty (60) minutes; however, there are service calls that can exceed that time due to distance and circumstance.

To receive 24-hour Roadside Assistance, you must call the toll-free number listed below and provide the date of purchase and the name of the installer at time of service request. All emergency road service performed under this Agreement must be generated by calls made to the assigned toll-free number. Any requests for reimbursement for services not generated by the toll-free number are subject to prior approval. In addition, reimbursement claims mailed more than 30 days after the service was utilized will not be honored. Please have your account number and your location

available.

What Ply Should My trailer Tire Be?

Posted by Pete's Tire Barns on 3/27/2015 to Trailer

Unlike your car, your trailer is designed to handle heavy loads. In order to properly and safely tow this weight, you need tires with the right ply rating.