When you’re towing serious weight, this tire-and-wheel combo is engineered for the job. The Triangle ST235/85R16 radial tire carries a 4,400-lb max load at 110 psi and meets DOT specs for highway use. Its all-steel belts and 14-ply rating give it the backbone to handle long hauls, heat, and heavy cargo without flinching.
This tire combines strength and traction in one tough package. The computer-generated tread design and premium rubber compound deliver confident grip on wet or dry pavement while reducing tread wear. Its special trailer radial construction cuts down on heat buildup and rolling resistance, helping it stay steady mile after mile.
Moisture and road salt don’t stand a chance against this wheel. The 16" x 6" black aluminum design is rustproof, protected by a clear coat on both sides to guard against scuffs and scratches. It’s lightweight yet durable, with steel inserts in the lug nut wells that prevent wear and hold torque over time—no more constant retightening.
This assembly is designed for a secure fit that inspires confidence every time you hitch up. It features an 8 on 6-1/2 bolt pattern, a 4.90" pilot diameter, and a 0 offset for proper hub seating. Rated for highway speeds up to 75 mph (speed rating L), it delivers smooth, stable performance whether you’re cruising cross-country or hauling local loads.
Things happen on the road, but this combo has your back. The tire comes with a one-year worry-free guarantee—if it’s damaged in any way during the first year, it’s replaced at no charge. That’s solid assurance built into every mile you tow.
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 at this Triangle ST 235/85R16 Load Range G Heavy-Duty Radial Trailer Tire with this 16-inch black aluminum wheel with an 8 on 6 1/2 inch bolt pattern. Now, this tire and wheel assembly is going to be great for your stock trailers, utility trailers, and campers. This special trailer tire, or ST tire, has 30 sidewalls so that it can handle heavy loads. This tire is created specifically for trailers and it's not intended for use on other vehicles. So this heavy-duty radial tire is gonna be great for highway use.
It is constructed with all-steel belts that will enhance its durability and extend its tread life. And speaking of tread life, this does have a computer-generated tread design and premium rubber compound materials that are gonna give you superior traction in both wet and dry conditions. Now, as I mentioned at the beginning of our time together, and as we have stamped here on our tire, this is an ST 235/85R16. The section width is 9.25 inches and the outer diameter is 31 11/16 inches. This is a load range G, meaning it has a 14 ply rating, and the maximum load is 4,400 pounds at 110 PSI.
This has a speed rating of L, indicating a maximum speed of 75 miles per hour. And this features an AM03 Series black aluminum wheel. So this wheel is durable yet lightweight, it is rustproof, and this open spoke design is rather unique and appealing. And the clear coat finish on the front and on the back is going to protect this wheel from scuffs and scratches. I do wanna point out that this wheel does have steel inserts in the lug nut wells.
That's going to help keep your wheel securely in place on your trailer hub. It's gonna prevent the holes from wearing down and eliminate the need for the constant re-tightening of the lug nuts. The diameter of our wheel measuring bead seat to bead seat is 16 inches. The width of the wheel is six inches, and this wheel has a capacity of 4,400 pounds. The wheel stud size is 1/2 an inch by 20 or 9/16 of an inch by 18.
Our 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, but that second number is the diameter and 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're simply going to measure from the center of one bolt hole to the center of the bolt hole directly across from it. The center cap is sold separately, but if you pick one up, you just wanna make sure that it fits the pilot diameter of 4.9 inches. This tire and wheel assembly does meet the Department of Transportation specifications, and this tire does have a one-year worry-free guarantee. So within the. If, within the first 12 months, the tire is damaged in any way, it will be replaced and no charge to you from Triangle. Well, that's gonna wrap up our look today. I do hope that our time together was helpful for you. Again, my name is Andy. Thank you for joining me.
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79% were satisfied with this product
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