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When you’re moving serious weight, the Triangle 235/75R17.5 Radial Tire is built to handle it. With an 18-ply rating and a 6,010-lb maximum load at 125 psi (single tire), it’s made for heavy-duty hauling on the highway. The J speed rating means it’s rated for up to 62 mph, so you can count on solid, stable performance mile after mile.
Durability is baked into this design. The all-steel belts reinforce the tread for long life while the wide shoulders promote even wear across the surface. The deep, rugged tread digs in for traction whether it’s dry or wet, keeping a confident feel on every trip.
This radial construction keeps rolling resistance and heat buildup low, so the tire runs cooler and lasts longer. The cords are set at a 90-degree angle to the direction of travel, reducing internal friction when flexing. That means less heat, a smoother ride, and better steering response at speed compared to traditional bias-ply designs.
Triangle stands behind this tire with a 1-year worry-free guarantee—if it’s damaged in any way within the first 12 months, it’ll be replaced at no charge. It’s that extra bit of assurance that your investment is protected from day one.
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"
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello everybody, this is Jeff at etrailer.com. Today we're gonna take a look at this Triangle 235 75R 17.5 heavy duty radio tire in a load range J. Now this Triangle heavy duty radial tire is designed for use on trucks, buses, and large RVs. They do use all steel belts to enhance durability and extend the tread life. And if you look at the tread, it's a nice computer generated tread design and the premium rubber compound materials to give you superior traction in wet or dry conditions. This tire does meet the DOT, Department of Transportation specifications.
It is designed to fit onto a 17 and a half inch by six and three quarter inch wheel. And the tire size, which you'll see is stamped on the sidewall, is 235 75R 17.5. The R means that it is a radial tire. Section width 9.3 inches. Overall diameter from the bottom to the top when it's inflated, it's 31.4 inches.
And we mentioned this is a load range J tire, which means it's an 18 ply tire. So the maximum load capacity depends on how many tires you have. If you're using it in a single tire application, this will give you a capacity of 6,010 pounds at 125 PSI. If you're using it in a dual tire application, it's gonna be 5,675 pounds at 125 PSI. And the last thing just to mention is the tire does come with a speed rating now, and that's designated on the sidewall by a letter designation.
And usually where that's at is right after the tire size we went over. There's two numbers for the load index, and then you'll see the letter J. Speed rating J will mean this tire has a 62 mile per hour speed rating. But that should do it for the review on the Triangle 235 75 R 17.5 heavy duty radial tire in a load range J.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Lazer S.
4/21/2026
Sorry about that, Joshua. I'm surprised these were that old as we tend to go through them fairly quickly. I will say these are stored out of the elements and the warranty doesn't start till you receive them, so you will still get a full life out of them. That said, we can reship replacements out to you if you would like. Have you mounted these yet?
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John N.
8/31/2025
Really good