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Old 08-16-2015, 04:08 PM   #1
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Anticipated Fight With Forest River

Hello all.

We are new to the forum but not to RVs.

We recently purchased our first brand new trailer. We picked up a Rockwood Signature Ultra Light 8312SS. We love the trailer. It fits the need of our family perfectly, even though there is only the four of us.

We brought it home on June 5 of this year. Since then we have put almost 7,500 miles on traveling from California out the 10 fwy to Mobile, Alabama, then north to Washington DC, and Philadelphia. Then down through Nashville, Tennessee, and home along the 40 fwy. That was a 40 night trip. What a blast and a heck of way to get accustomed to the new trailer.

Now for the fun part. As we all know with new equipment, there comes the punch list of things that need to be fixed. The dealer said that there shouldn't be a problem with "most" of the list.

My big issue is with the wheels and tires. They equipped the trailer with load range C wheels and tires. They are rated at 2,150 lbs each. Doing the math, that's a total rating of 8,600 lbs. The trailer is rated at a gross weight of 8,800 lbs. Now, I know that some of that weight will transfer to the tow vehicle, approximately 10 percent if loaded properly. So that leaves 7,920 lbs for the wheels and tires. That leaves a very slim margin of 170 lbs available on each wheel and tire combination, only 7.9% of the tire rating. Now I am not a math genius, but in my warped mind, that load is calculated at static load, as in the trailer sitting still. How much more weight is transferred to the tires as the trailer is bouncing down the road. If there was a way to measure the weight during transit, I am fairly certain that the tires are taking a lot more weight than the max load specified.

The reason this has come up is that I blew a tire on the trip. I did not hit anything with the tire, road hazards or curb shots. The tire does not show any signs of abuse at all. I called Forest River when this happened and they went as far as telling me that they are aware that this trailer is at the high point of the wheel and tire rating and are planning on fixing it in future models. But they insist that it is safe the way it is and I'm pretty much on my own. If it is okay then why are the "fixing" it on future models?

Any help or suggestions or do you think i am out of my mind and should just plan on buying the higher rated wheels and tires myself.
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Old 08-16-2015, 07:43 PM   #2
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Shouldn't need a higher rated wheel. Should be good for at least a 'D' rated tire. My rims are rated for 2560 which is 'D' rated, but came with 'C' like yours. My wheel rating is stamped on the backside of the rim.


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Old 08-16-2015, 08:00 PM   #3
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NTSB, you really should file a complaint.

https://www.google.com/#q=ntsb+trailer+tire+complaints
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Old 08-16-2015, 08:56 PM   #4
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Does the load on a tire change as it's going down the road? I'm not sure I understand that but I'm not an engineer either.
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Old 08-16-2015, 09:29 PM   #5
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Go to D rated tires and use the C rated tires as spares. I take two spares with me where ever I go. 7500 miles is a lot of miles in less than 3 months. How are the tires wearing? If the remaining tires look good, then you are not 'over loaded'. If a lot of wear, then your tires should be replaced anyway and go to a higher rating. imo
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Old 08-16-2015, 09:37 PM   #6
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I'm not an engineer but common sense tells me that the dynamic load going down the road would increase as the tire rolls over speed bumps and surface changes as you roll onto and off of bridges and other changes. Had a factory tire lose air every day or so, the bead that holds the tire to the rim crumbled in places when the tire tech took it off the rim. I replaced all 5 with Maxxis E rated 8008's. Had steel stems installed and balanced. I use a TPMS running them at 70 psi. I guess I went a little overboard but I hate tire trouble. I wish FR would have given an option for better tires when we ordered our trailer. FR would have replaced the bad tire with a like tire, not for me.
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Old 08-16-2015, 09:41 PM   #7
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2X Ford Idaho.

You need to file a complaint with NTHSB about the tires. Forest River is infamous for borderline rated tires. Mine came with D rated tires that would not cover the 11,700 max weight of unit. I have blown all four original tires [three on one trip] and replaced them with E rated tires. May even go up one more level come replacement time.
The National Highway Transportation Safety Board takes all complaints and will do a recall if warranted. I get notices from them on a weekly basis. Lots of great info on their website.
You will be helping all of us and yourself to notify them. If they don't know there is a problem, they can't fix it.
Make sure you have all the info off the edge of your tires before you email them IE, DOT #, year of manufacture, Load range C, max pressure, name brand, etc.
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Old 08-16-2015, 09:44 PM   #8
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You are wasting time if you plan on fighting FR, just bite the bullet and buy 5 LR D tires and balance them with TPMS sensors on and go camping.
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Old 08-16-2015, 09:51 PM   #9
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Wow nice trip you took. Glad you all had a good time. Sorry to hear about the tire issues. Tire issues seem to be at the forefront of complaints and always will be. I'd replace with D rated. All these RV manufactures put the cheapest tire on they can get at the time. Go E rated if your rims can take it. Check their load rating on the rim and put the max weight tire they can handle.
Glad I have a triple axle with over 3000 pounds extra tire load to spare.
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Old 08-16-2015, 09:51 PM   #10
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I can tell you C or D the tires FR puts on are crap China bombs! I would replace with a good D rated tires and keep your family safe. Blow outs can do a lot of damage and FR will not fix it!
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