Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
Radial tire has a ply rating of 6 and a 1,360-lb maximum load at 50 psi. The 13" diameter x 4-1/2" wide steel trailer wheel features a 5 on 4-1/2 bolt pattern and a corrosion-resistant powder coat finish.
Features:
Specs:
Note: The overall capacity of this tire-and-wheel assembly is limited to the lowest rated component. Do not fill your tire to a pressure greater than that indicated on the tire itself or on the wheel that it is mounted to.
Determining the Bolt Pattern
The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.

To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: "5 on 4-1/2" means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)

On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: "8 on 6-1/2" means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)

Measuring the distance from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.
Video of Karrier ST175/80R13 Radial Trailer Tire with 13" White Wheel - 5 on 4-1/2 - Load Range C
Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
Today we're going to review part number AM31951. This is a Kenda tire, size ST175/80R13. It's a radial trailer tire and it's mounted on a 13-inch Deckstar White Spoke Wheel. This wheel does have a white powder coat finish which will give a superior corrosion resistance. It's on the front of the wheel and also on the rear of the wheel. A few measurements we'll do on this wheel would be the diameter of the wheel, in this case it would be 13 inches if we measure it from inside to inside, it'd be 13 inches.
The width of this wheel is a 4-1/2 inches wide. This wheel has a bolt pattern of 5 bolts, 4-1/2 inch bolt pattern. And on a wheel with an odd number of lug bolts, like this one which is five, there is a couple of ways you can measure the bolt pattern. First way would be if we drew a circle through the center of all five of the lug holes and then measured the diameter of that circle. So in this case, if we measure from the center of this lug hole to the outer edge of that circle, it will be 4-1/2 inches.
So that will tell you this is a 5 on 4-1/2-inch wheel. The other way is if you could measure from the center of one lug hole to the center of the lug hole right next to it, so in this case if we do that, it would be 2-5/8 inches. And then what you would need to do would be to go to the product page for this part number and at the bottom of the product page it will list a chart which will show that if that measurement is a 2-5/8 it would relate to a bolt pattern of 5 on 4-1/2 inches. This wheel has a weight capacity of 1660 pounds at 65 psi. It does use a wheel bolt size of 1/2 inch by 20.
Another critical measurement would be the large hole in the center of the wheel which goes over the hub on your trailer. This will be the pilot hole diameter. So in this case when we measure that it would be 3.19 inches. Now we'll move onto the tire. The tire is a Loadstar, again size ST for special trailer 175/80R13.
And the R will designate that this is of radial construction. This tire is a load range C which means it is a 6-ply rated tire, does have a maximum load capacity of 1360 pounds at 50 psi. Give you one more measurement, it'll be the overall diameter and it would be 24 inches. And again, this tire is of radial construction which would mean the belts on the inside will run from one bead seat across to the other bead seat which would be a radius design. And the nice thing with the radial tire when you compare to a bias tire is because of the way it is constructed, the tread will lay flat on the ground for more ground contact that will improve traction, better stability. The other nice thing is a radial tire will usually run cooler when compared to a bias tire will help as far as tire wear. This tire and wheel combo come a with a limited 2-year warranty. And that should do it for part AM31951.
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Average Customer Rating: 



4.9 out of 5 stars (17 Customer Reviews)




by: Mike A.09/01/2011
Is this review helpful?
Tires look great, ride great! High quality tires mounted, inflated and ready to go right out of the box. Incredibly fast delivery, on my doorstep the next day. Etrailer.com has really impressed me and earned my future business23335




by: Randy A.05/23/2013
Is this review helpful?
Excellent tire, highly recommend. The tips on how to measure the bolt pattern were accurate and easy to follow. Thank you E Trailer.81657




by: Scott B05/16/2013
Is this review helpful?
Exactly what I was looking for. Should be a perfect spare should I ever need it.80591




by: Dave B.08/06/2012
Is this review helpful?
Tires and rims were great ! Am definitely impressed with quick delivery time...Ms to Oh. Had just removed my old wheels when the UPS truck just pulled up with new ones ! (And I didn't even pay any extra for this..LOL. Would recommend these tires and using etrailer.com to a friend.50665




by: Dennis A.06/20/2012
Is this review helpful?
Tires were delivered ahead of schedule in excellant condition. Follow-up by customer service dept was great. Kept me informed of status of order until it arrived at my door. 44910




by: Dan06/15/2012
Is this review helpful?
I need new tires for my Boat trailer. I planned on going to a fishing tournament 7 hours away and realized new tires were a must! I got just what I needed and received it within 2 days. 44406




by: Tom M.04/28/2012
Is this review helpful?
Tires and wheels came yesterday. Fit and look great! 38683




by: mike04/26/2012
Is this review helpful?
Tires came delivered in a timely manner. Tires and rims look excellent & fully inflated. I have not yet put them on the trailer so I have no input on how they feel or tread wear.38463




by: Anthony S.04/23/2012
Is this review helpful?
Product was great. Looks good, works good and came ready to go. Etrailer staff was VERY helpful and I received multiple follow up emails within hours of placing an order constantly letting me know the status or my order. Ordered Monday and received my tires Friday all the way in California.38097




by: Bassman04/14/2012
Is this review helpful?
Trailer tires and wheels arrived in 48 hours ready for install. I can't speak for the longevity of the product since they've just been put on but I will say etrailer.com is the absolute best. I didn't really need the rims, although my old ones were showing their age, but I bought them regardless because the combo price was so reasonable. Great phone support from Pat before purchase and followup from Kathy after the sale!37222




by: Chris04/13/2012
Is this review helpful?
The tires arrived in 5 working days and were delivered to my front door. The tires look great and will be on the trailer and ready for Rockfish season in the Chesapeake Bay.37090




by: Roger W.01/23/2012
Is this review helpful?
My first trip fishing with the new Karrier tires from eTrailer was yesterday 01-21-2012. Out of the box and installed on my trailer. The ride was very smooth! I really appreciate everyone that assisted me with my minor problems from the start. My Thanks to this great team including but not limited to: Katherine H., Lori B., Janice A., Rebecca N., Christy, John, & others. Showing a couple shots of the tires on the trailer, limit of Crappie (30) & three of the biggest Crappie.30177




by: Scott B.01/05/2012
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Was delivered quickly and is what was expected. A good value. 29112




by: Roy G12/28/2011
Is this review helpful?
This was my 2nd order from etrailer and I was very satisfied with the service and the way they kept me updated on the shipping.. Can't say anything about the tire I ordered yet, only time will tell how well it holds up..I will order from this company again.. 28817




by: Dennis09/26/2011
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Product looks great and shipping was REALLY fast. Thank you!24618




by: Ernest Jutras06/30/2011
Is this review helpful?
Product was delivered on time and in excellent condition. Product was better than I thought. IT WAS MADE IN THE USA.... Ernest Jutras18320




by: Arthur H02/16/2011
Is this review helpful?
Can't comment on products yet, had them shipped to my vacation home and haven't seen them yet. But I can comment on shipping service. This is the second time I've had stuff shipped this way and it has been lightening fast and the tracking feature is superb. The hitch and accessories I ordered last time delivered in great shape and at an excellent price. I recommend etrailers to all my friends.7270
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