13" Bias Ply Trailer Tire and Wheel
- Tire: ST175-80-D13
- Load Range C
- Maximum Capacity: 1360 lbs. at 50 psi.
- Bolt Pattern: 5 on 4-1/2
- White Spoke Design
Note: Bias Ply Trailer Tires can only be used with Bias Ply Tires. Do not replace a Radial Tire with a Bias Ply Tire unless you are replacing all the tires on the trailer.
Note: Most trailer tires that are smaller than 15" and have 5 bolts, have a 5 on 4-1/2" bolt pattern.
How to Measure Bolt Pattern
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Determine the bolt pattern on the trailer wheel by the number of bolts and the 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" measured to a point halfway between the opposite bolts).
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AND / OR
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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.
- If D = 2-5/8" then the bolt pattern is a 5 on 4-1/2
- If D = 2-3/4" then the bolt pattern is a 5 on 4-3/4
- If D = 3" then the bolt pattern is a 5 on 5
- If D = 3-1/4" then the bolt pattern is a 5 on 5-1/2
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