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How to Determine the Load Rating of Tires on a Motorcycle Trailer

Question:

I have inherited a trailer for hauling my 950 lb cruiser around long hauls. The trailer has 5.3 x 12 high speed tires on it. for the load what is recommended.

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Expert Reply:

I think you are asking about the load rating for the 5.30-12 tires on your motorcycle trailer. Is that the case? If so, there are a few things we will want to look at. The 5.30-12 trailer tires come in three different load ranges. The easiest way to tell the load rating of your tires is to look at the sidewall of the tire. Most tire manufacturers will list the weight capacity and psi rating on the side of the tire. They may also list the load range using the letters B, C or D. A load range B tire will have a maximum load capacity of 840 lbs at 55 psi. A load range C tire will have a max load of 1,045 lbs at 80 psi and a load range D tire will have a load capacity of 1,250 lbs at 105 psi.

Keep in mind, the load rating of the tires will not always dictate the weight capacity of the trailer. If the load capacity of the tires exceeds the load capacity of the trailer axle or suspension, you must use the lowest rated component as your limit. If the trailer still has the factory axle, suspension, tires and wheels, then there should be specs tag somewhere on the tongue or the front of the trailer that will list the trailer's weight capacity.

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John H

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