15" Radial Trailer Tire on a Modular Trailer Wheel
How to Measure Bolt Pattern

The first number in the bolt pattern is the number of bolt holes. The second number is the diameter of the circle the holes sit on. To determine the diameter on wheels with an even number of bolt holes, measure center-to-center on bolt holes directly across from each other on the circle (Example: 8 on 6-1/2 would mean 8 bolt holes with 6-1/2" center-to-center diameter). When the number of bolt holes is odd, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from it on the circle (Example: 5 on 4-1/2 would mean 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolts).
AND / OR

The distance between the center of one bolt hole on the wheel to the center of the bolt hole right next to it will also help determine the bolt pattern.
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5.0 out of 5 stars (2 Customer Reviews)




by: Affordable Concrete Cutting05/11/2011
Is this review helpful?
I needed a spare for my power-pak trailer. Tire was perfect. Exactly as described. Fast FREE shipping and packaged very neatly. I ended up with a spare tire mount and the tire (with shipping) for the same price as everyone else wanted just for the tire. I will use them again.13450




by: Affordable Concrete Cutting05/11/2011
Is this review helpful?
I needed a spare for my power-pak trailer. Tire was perfect. Exactly as described. Fast FREE shipping and packaged very neatly. I ended up with a spare tire mount and the tire (with shipping) for the same price as everyone else wanted just for the tire. I will use them again.13446
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