How do I know what bolt pattern I have for my trailer wheels?

How To Determine Bolt Pattern:

Match wheels to hubs by the number of bolts and bolt circle. To determine the bolt circle on wheels with an even number of bolt holes, measure center-to-center on bolt holes directly across from each other on the diameter

Example: 8 on 6-1/2 would mean 8 bolt holes with 6 1/2” center-to-center diameter

On odd number bolt wheels, measure any bolt hole center to the point halfway between bolt holes on the diameter

Example: 5 on 4 1/2 would mean 5 bolt holes with 4 1/2” measure to a point halfway between the opposite bolts

How To Measure Bolt Pattern on Trailer Wheels

We have created a Trailer Bolt Circle Template for your convenience. You can download the file at:

/files/FAQs/TRAILER-BOLT-CIRCLE-TEMPLATE.pdf

Simply print the template on an 8.5" x 11" page, and make sure the document size is set to actual size. Hold the template up to the bolt pattern on your trailer wheel and match up the holes to determine the size.

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