Correctly Rated 225/75-15 Trailer Tires For 7,000 lb Tandem Axle Trailer

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Question:

I own a 16’ x 8’ dual axle enclosed trailer. I haul tools, a small welder, some heavy misc. steel fence posts, around for my business. It has 3500 pound axles. I’m currently using transeagle load range E 225/75/15 tires. The tread is almost completely gone after 8000 miles approximately. I have had no blowouts and they worked fine. I had all 4 of these new tires installed at the exact same time. The rear axle or out the two tires on there faster than the other axle. The front axle tires have about 20 tread left on them. The rear tires on that axle are almost completely bald and I would say they have 0 tread left on them. I am thinking about only replacing the rear tires with the F load range trans Eagle tires 225/75/15. is that okay to run the load range F brand new tires in the rear axle with the front axle having a load range D2 25/75/15 keeping in mind they have only 20 tread left on them. When these tires get down to 10 or 15 tread left on them I was thinking about replacing them with two more load range F tires. But a friend of mine told me that those load range F tires are overkill and then I should not use them. 1. Is that true? 2. If I move up to a load range F 225/75/15 will these tires last more miles? 3. Should I use rubber or metal valve stems? 4. Should I balance these tires? I heard I would get less tools and parts bouncing around and falling off my shelves if I balance the load range F tires. 5. I use 2 Alluminum beautiful looking rims on my front axle and 2 std white steel rims that have the little round holes in them that you see everybody else using. Is this ok? Can I send a picture here so you can see them? 6. I am not sure if I have lug centric or hub centric rims. I will look into that and get back to you. I understand I’m supposed to have a balanced on a special machine if they are lug centric. This is what I found: To get the best tire balance for lug-centric wheels, the tires should be balanced by a shop that uses a pin plate adapter. This mimics the way a lug-centric wheel is mounted to a hub and will result in the best overall outcome

asked by: Ron P

1

Helpful Expert Reply:

Okay, let's start real quick with if you should have different load rated tires on your tandem axle trailer - you can, but it isn't advisable as they will wear differently, or you'd need to keep a real close eye on the psi of each tire to make sure it's exactly the same. As for the rest of your questions, I'll take them one by one.

1) While we don't have Eagle tires so I can't comment on their viability, your friend is 100 percent right, load range F 225/75-15 tires are absolutely overkill for your 7,000 lb GVWR trailer. You simply want the tires to meet or exceed the GVWR of your trailer, and that's all you need - getting anything over that is spending money for a higher load range you aren't using. If you'd like, you can still use load range D, which has a 2,540 lb per-tire capacity, the Castle Rock ST225/75R15 Radial Trailer Tire - Load Range D # 274-000029.

However, a load range C is more than enough, as they have a 2,150 lbs capacity, so four of those is 8,600 lbs. You'll want a good tire though, the Karrier ST225/75R15 Radial Trailer Tire - Load Range C # AM10251.

2) Load range F tires won't last longer, a quality tire will, which is why I recommend either the Castle Rock # 274-000029 or Karrier # AM10251.

3) The valve stem is dependent on the rim, but rubber is fine for lower psi like these tires use.

4) Balancing the tires is a good idea to help with a smoother ride, but you don't have to use a special machine you can use the Counteract Tire Balancing Beads for Tandem Axle Trailers - 4 Tires # CA83VR.

5) Yes to both parts of the question.

expert reply by: Kyle S

1

I T.

5/12/2025

Will theses new tires hold up? 225/75R ST 15” 6 lug putting them on a 30 ft sea Ray boat trailer. The boat is 6500lbs will they hold up. Pulling it 500 miles from Ca to Oregon.

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Correctly Rated 225/75-15 Trailer Tires For 7,000 lb Tandem Axle Trailer

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