This tire-and-wheel assembly is made for serious towing. The Triangle ST235/80R16 radial tire carries a 14-ply rating with a 4,080-lb max load at 110 psi, matched to a dual 16"?× 6" steel wheel rated at 3,860 lbs. With a speed rating L?(75 mph) and all-steel belts that enhance durability and tread life, it’s designed to run cool and stable mile after mile while meeting DOT specifications.
When you’re logging highway miles or pulling weight in heat, the all-steel belt design and radial construction keep things steady. The cords inside the tire run straight across from lip to lip, cutting rolling resistance and heat buildup. That means smoother tracking at speed, longer tread life, and better traction whether roads are wet or dry.
Corrosion won’t cut your season short. The 16"?× 6" dual steel wheel uses an e-coat primer with a silver powder coat that resists rust from moisture or road grime. It’s hub-piloted with an 8 on 6-1/2 bolt pattern, 5/8" stud diameter, 4.77" pilot, and?±5.35" offset—an exact fit built for strength as much as longevity.
You get solid coverage from the start. If this Triangle tire is damaged in any way within the first 12 months, it’s replaced at no charge. Add in a 2-year limited warranty on the wheel and a 5-year limited warranty on the tire, and you’ve got protection that matches the heavy-duty build quality.
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.
Hi everybody, Andy here with etrailer.com. Let's take a look together at this Triangle ST235/80R16, Load Range G, heavy-duty radial trailer tire with a 16-inch silver steel dual wheel. Now this special trailer tire or ST Tire has sturdy sidewall so that it can handle heavy loads. It is created specifically for trailers and not intended for use on other vehicles. As you know, radial ply tires are designed for trailers that are towed on the highway. And this radial tire is constructed with all-steel belts to enhance durability and extend tread life.
This computer-generated tread design and premium rubber compound materials are going to give you superior traction in wet or dry conditions. Now as I stated just a moment ago, and as we have stamped in our tire, this is an ST235/80R16. The section width of this tire is 9.25 inches and the outer diameter is 30-7/8 inches. This is the load range G, meaning it has a 14-ply rating. The maximum load single is 4,080 pounds at 110 psi and the maximum load dual is 3,640 pounds at 110 psi.
This has a speed rating of L, indicating the maximum speed of 75 miles per hour. And that heavy-duty silver steel wheel with 1, 2, 3, 4 hand holes is designed to be used in dual wheel setups. Now this wheel does have a high offset, so it does allow for this wheel to be used as either an inner wheel in this orientation or an outer wheel in this orientation for your dual wheel setup. And the offset is either a positive or negative 5.35 inches. This steel wheel is sturdy, it's corrosion resistant.
It features a silver powder coat finish over an e-coat primer. And this is a hub-piloted wheel, which means that it will center on the hub of the axle and not on the lugs. The pilot hole diameter is 4.77 inches, and this does require the use of flange nuts for installation. We do sell them separately here at etrailer.com. So this does use a wheel lug size of 5/8 of an inch by 18 flange nut.
This does have a metal valve stem that is installed. The dimensions of our wheel, looking at the diameter first, measuring bead seat to bead seat is 16 inches. And looking at the width, again, measuring bead seat to bead seat, is 6 inches. The wheel has a capacity of 3,860 pounds. The bolt pattern is 8 on 6-1/2 inches. And in case you don't know, the first number in the bolt pattern is the number of bolt holes, and the second number is the diameter in inches of the circle on which the bolt holes sit. So to determine the bolt circle diameter on wheels with an even number of bolt holes as we have here, you simply measure from the center of one bolt hole to the bolt hole directly across from it. This assembly does meet the Department of Transportation specifications. And I think that's gonna wrap up our look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.
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