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When you’re towing in heat or covering long distances, this tire holds steady mile after mile. The Provider ST175/80R13 radial is Load Range C with a 6-ply rating, supporting up to 1,360 lbs at 50 psi. It’s rated for speeds up to 81 mph (speed rating M) and meets DOT and FMVSS standards, so you can stay on the road without worrying about heat buildup or blowouts.
This tire is made to handle real-world hauling stress. The double steel belts and double polyester cords reinforce the carcass for a long life, while a nylon overlay helps prevent tread separation. Each tire is bake tested to make sure the rubber composition holds up over time, giving you solid support and consistent wear.
Rain, snow, or slick pavement—this tread keeps traction where it counts. The automotive-grade pattern uses ribs with breaks and sipes that channel water away from the contact patch. Combined with a 10/32" tread depth, it grips well in wet, snowy, or icy conditions while maintaining a smooth ride on dry roads.
The radial construction lays cords at a 90-degree angle to the direction of travel, cutting down friction and heat buildup compared to bias-ply designs. That means less rolling resistance on the highway and longer tread life. It’s built to deliver a cooler, quieter ride that feels stable even at higher speeds.
1. Count the lug holes
Look at the wheel hub or the back of the wheel and count how many lug holes there are(also called bolt holes).
Common configurations include: 4-lug, 5-lug, 6-lug and 8 lug
2a. For even lug counts (4-lug, 6-lug, 8-lug)
Measure from the center of one lug hole directly across to the center of the hole opposite it.
Common configurations: 4 on 4", 6 on 5.5", 8 on 6.5"
2b. For odd lug counts (5-lug)
Measure from the center of one lug hole to the outer edge of the hole directly across (not center-to-center since there's no directly opposite hole).
Common configurations: 5 on 4.5" (most popular), 5 on 5", 5 on 4.75", 5 on 5.5"
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
Daniel W.
1/27/2019
I didnt really think changing from bias to a radial tire would make a lot of difference but boy was I ever wrong! I wish I had changed years ago. A higher speed rating was a big plus plus the trailer seems to pull much easier now. Will definitely purchase again when the time comes and will be ordering again from Etrailer. 100 impressed with not only the product but shipping etc is top notch.
Ed
2/23/2018
Installed on 16.6 boat trailer. Tires tracked fine. No unexpected issues.
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Tim C.
6/17/2016
I am still absoluetly happy with the product. Though we have had a long winter in Colorado so we have not used the trailer in about 6 months. I will know more how the tires are when I get the trailer out of storage in the coming weeks.Thanks for the follow up. Your company is amazing!!!