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Old 11-04-2014, 10:35 AM   #1
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Rockwood 8312SS

Considering a Rockwood 8312SS for a future purchase. I am thinking that the Rockwood Signature Ultra Lite is one of the lines that has tires that are MAXED out when you load to GVWR, which is easy to do considering they CCC is usually only 1200-1500lbs. I, for one, am not going anywhere on China bombs loaded to the MAX. With that being said, I was hoping someone could tell me the tire size, load range, and tire weight rating on an 8312SS. Also, if anyone has upgraded to a higher load rating or different size on one, I'd like to hear about it. Thanks.
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Old 11-04-2014, 11:04 AM   #2
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I don't have that specific model and others will chime in that will know the tire size. I had a Flagstaff 831RLSS which was the sister to the Rockwood as you probably know. I went from Load Range "C" which were pretty maxed out to Load Range "D" and put alot of miles on them with no issues at all.

I switched to SOB now and that trailer has maxed out load ranges too. My neighbor has a KZ 5er and his tires were maxed out too. I'll be switching mine out on the new trailer for higher load ranges when the season begins for me next year.

Good luck!
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Old 11-04-2014, 11:15 AM   #3
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My 8329SS came with "Trail Express" ST225/75R15 load range C tires on it. I installed GY Marathons in the same size but load range D, and sold them on CL.

Your fully loaded trailer will have close to 8000lbs on the axles. Load range C tires are rated for 2150lbs or a total of 8600lbs.
Load range D tires are rated for 2540lbs or a total of 10160lbs. I'm running them on the stock rims at 65psi with no issues.

My issue on the tires FR includes is not so much the tires load range, but the quality of them. If your going to put on better tires, you might as well go up one load range as the cost is the same or close to it.
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Old 11-04-2014, 11:26 AM   #4
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Quote:
Originally Posted by offroad View Post
My 8329SS came with "Trail Express" ST225/75R15 LR-C tires on it. I sold them on CL and installed GY Marathons in the same size but in load range D.

Your fully loaded trailer will have close to 8000lbs on the axles. Load range C tires are rated for 2150lbs or a total of 8600lbs.
Load range D tires are rated for 2540lbs or a total of 10160lbs. I'm running them on the stock rims at 65psi with no issues.

My issue on the tires FR includes is not so much the load range of tires, but the quality of them. If your going to put on better tires, you might as well go up one load range as the cost is the same or close to it.
That was kind of my point, too. I'd feel OK with a good tire running at max, but not a crappy one. And if I'm going to install good ones, why not step up a load range.
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Old 11-04-2014, 11:30 AM   #5
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Originally Posted by Flagstaffer06 View Post
I don't have that specific model and others will chime in that will know the tire size. I had a Flagstaff 831RLSS which was the sister to the Rockwood as you probably know. I went from Load Range "C" which were pretty maxed out to Load Range "D" and put alot of miles on them with no issues at all.

I switched to SOB now and that trailer has maxed out load ranges too. My neighbor has a KZ 5er and his tires were maxed out too. I'll be switching mine out on the new trailer for higher load ranges when the season begins for me next year.

Good luck!
Thanks for the info. I've looked at other brands and it seems as though almost universally the "lite" fiberglass trailers have marginal tires, whereas the entry level stick and tins have a substantial reserve capacity on the tires. You'd think they'd put the better tires on the more expensive rigs????
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