When you’re towing serious weight across long distances, you need a tire that’s built for it. The Triangle ST235/80R16 heavy-duty radial tire is Load Range G (14-ply rated) and carries up to 4,080 lbs at 110 psi. It’s rated for 81 mph and built with all-steel belts for strength and stability under load. The radial construction runs cooler on the highway, extending tread life and keeping performance consistent even on hot pavement.
Salt, water, and road grime won’t eat this wheel alive. The 16" x 7" aluminum wheel features a matte-black finish with a protective clear coat on both sides to resist rust, scuffs, and scratches. The lightweight aluminum design won’t corrode like steel, so it keeps its good looks and strength season after season.
This tire couples the rugged feel of a bias tire with the smooth durability of a radial. All-steel belts inside the carcass add strength, while the computer-generated tread pattern and premium rubber compound provide secure traction in wet or dry conditions. It’s designed specifically for trailer use and meets DOT specifications for highway operation.
Fitment is straightforward thanks to the standard 8 on 6-1/2" bolt pattern, 0 offset, 4.90" pilot diameter, and wheel bolt sizes of 1/2"-20 or 9/16"-18. With a wheel capacity of 4,400 lbs and matching tire capacity of 4,080 lbs at 110 psi, this assembly gives you balanced strength across both components.
Durability is backed up by coverage you can count on. If this tire is damaged in any way within the first 12 months, it’s replaced at no charge under the one-year worry-free guarantee—so you can tow knowing you’re 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 I'm gonna take a look at this Triangle ST235/80R16 Heavy Duty Radial Tire in a Load Range G, and it's mounted on this 16 inch Matte Black Aluminum Wheel with the eight on six and a half inch bolt pattern. Now this tire and wheel assembly is ideal for stock trailers, utility trailers, and campers. This is a Sendell Series Type 17 Aluminum Wheel. As you can see, it is a mesh design wheel.
Has a nice matte black finish to it. And if you notice, the front of the wheel and even the back of the wheel has a nice clear coating on it for protection. Now the wheel does not include a center cap. If you do want a center cap, we do sell those separately on our website. You do wanna make sure, when you buy the center cap, that you get one that has the same diameter as this pilot hole, because when you install your center cap, it will go through this hole.
The pilot hole diameter on this wheel is 4.9 inches. Now the wheel dimensions, the diameter on the wheel is 16 inches. The width on just the wheel by itself is seven inches wide. Now this wheel does have a bolt pattern of eight on six and a half inches. And if you wanna measure that bolt pattern on a wheel that's an even number of lugs, like in this case, eight, it's pretty easy, because if you notice, the lug holes are directly across from each other.
So when you go to measure your bolt pattern, you just pick one of the holes, measure from the center of that hole, directly across to the center of the hole right across from it. So if you measure on this one, it would measure six and a half inches. So this is an eight lug, six and a half inch bolt pattern. This will use the wheel lug size of a half inch by 20, or nine and 16ths by 18. The weight capacity on just the wheel is 4,400 pounds.
Now the tire we mentioned, it is a Triangle Heavy Duty Special Trailer tire. And it is a special trailer design, which means it couples the strength of a bias tire with the durability and stability of a radial tire. But it is created specifically for trailers. It's not intended for use on any other vehicles. They do use all steel belts in this tire to enhance durability and it help extend the tread life. And if you look at it, it has a nice computer generated tread design, and they use premium rubber compound materials to give you a superior traction, wet or dry conditions. Now the size on this tire stamped on the sidewall, ST, for Special Trailer, 235/80 R 16. The R means that it is a radial tire. The section width on this tire is 9.3 inches. Overall diameter from the bottom to the top when it's inflated is 30.8 inches. And we mentioned it's a heavy duty tire. It is a load range G, which means it's a 14 ply tire, 14 ply rating. Has a maximum load of 4,080 pounds at 110 PSI. And the last thing I do wanna mention is the trailer tires now do have a speed rating on them, and they stamp that on the sidewall with a letter designation. So if you go right after the size we went over, you'll see two numbers for the load index, and then the letter L. Speed rating L will mean it's a 75 mile per hour speed rating. Now this assembly does meet the DOT, Department of Transportation specifications. But that's gonna do it for the review on this Triangle 235/80 R 16 Heavy Duty Radial Tire in a Load Range G, mounted on this 16 inch Matte Black Aluminum Wheel.
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