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Old 09-22-2015, 02:02 PM   #21
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We also had a flat on our 8281 WS on Sunday. Tires are the Power Tommy's as well. Had a local tire shop replace all 4 tires and upgraded them to 10 ply load range E. Tire guy was amazed that the original tires were load range C and only 6 ply.
I had no idea that the tire was flat, another driver pointed it out. It was hot 101 degrees and the road surface was awful. Never went over 60 mph.
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Old 09-22-2015, 02:14 PM   #22
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Has anyone reported these tire failures to National Highway Traffic Safety Administration?
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Old 09-22-2015, 02:25 PM   #23
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I'd be interested to hear what deals folks have got on a decent replacement set of tires, and where the got them installed (rather than installing themselves) and how much they charged for installation.

I only have < 400 miles on our 8281WS, tho' will be doing another couple of in-state trips next month, and another trip up to the FL/AL border around xmas. We do have an 8000 mile road-trip planned for next year tho', so definitely want better tires for that, if not before, and am also wanting to get a TPMS (recommendations welcome).
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Old 09-22-2015, 02:33 PM   #24
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Quote:
Originally Posted by gunn1976 View Post
Has anyone reported these tire failures to National Highway Traffic Safety Administration?
Oh yes
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Old 09-22-2015, 02:42 PM   #25
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I'd also appreciate if anyone can clarify what the ST tire prefix implies ?

I know the load ratings (and most of the 225/75R15's seem to be 102 load ratings, which seems significantly under-rated for a 2 axle fifth-wheel, and the speed rating (tho' I guess C is much lower than I'm used to).

I did spot that TireRack had some
POWER KING TOWMAX STR II
Size: ST225/75R15 117/112L E

which have a much better load rating

Edit: Reading further into description, I guess ST is Specialty Trailer tires (not designed for driving wheels), and these tires are L speed rated (75mph), and E load rated (10 ply, 80 psi max), not sure why they give 2 load numbers).
The listed specs are that they're rated for 2830lb each, 80psi, and are chinese made.

Also found that DiscountTire list some Hartland Radial ST tires, which are 117 load rated, N speed rated (87mph), and E load/ply rated (10 ply, 80psi), and similar spec Carlisle Brand tires. No idea of the reputation of any of these brands
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Old 09-22-2015, 02:49 PM   #26
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Quote:
Originally Posted by DNBINFV View Post
We also had a flat on our 8281 WS on Sunday. Tires are the Power Tommy's as well. Had a local tire shop replace all 4 tires and upgraded them to 10 ply load range E. Tire guy was amazed that the original tires were load range C and only 6 ply.
I had no idea that the tire was flat, another driver pointed it out. It was hot 101 degrees and the road surface was awful. Never went over 60 mph.
How old (timewise) were the failed/replaced original tires?
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Old 09-22-2015, 02:52 PM   #27
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Quote:
Originally Posted by leefl View Post
I'd be interested to hear what deals folks have got on a decent replacement set of tires, and where the got them installed (rather than installing themselves) and how much they charged for installation.

I only have < 400 miles on our 8281WS, tho' will be doing another couple of in-state trips next month, and another trip up to the FL/AL border around xmas. We do have an 8000 mile road-trip planned for next year tho', so definitely want better tires for that, if not before, and am also wanting to get a TPMS (recommendations welcome).
The 10 ply Maxxis 8008 st tires that I bought 225/75/15 were $126.00 Ea from Discount tire. The steel valve stems were $4.00 each. I have the tst 507 TPMS with the flow through sensors. Had the wheels balanced with the sensors in place. Discount Tire also included lifetime spin balance and repairs in there price. Bought 5 tires to include the spare. I did not seek any financial relief from FR, maybe I should have but it's been over a year now. I have read on this forum that some have gotten $300.00 from FR towards better tires
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Old 09-22-2015, 02:56 PM   #28
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How old (timewise) were the failed/replaced original tires?
The tire I had go bad was 8 months old and had about 3K miles on it. It was a bead leak / crumble not a blow out.
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Old 09-22-2015, 02:58 PM   #29
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The plies are usually also given by lettering molded on the sidewall e.g. tread: 2 polyester 2 steel 2 nylon, sidewall: 2 polyester 2 nylon.

Note that the nominal 'ply' rating will not correspond to how many actual plies are in the tire construction. The 'ply' rating is based on some ancient bias ply construction where that number of cotton plies was required to give that inflation pressure burst strength.

DNBINFV: your destroyed tire also shows the signs of severe underinflation running. TPMS: Don't Leave Home Without IT!
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Old 09-22-2015, 03:02 PM   #30
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Quote:
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The tire I had go bad was 8 months old and had about 3K miles on it. It was a bead leak / crumble not a blow out.
B & B had exactly the same issue (bead crumbled and parts stuck to the rim when removed). I don't trust how no-name Chinese factories compound their rubber. We live in a long-time tire building (and even longer time rubber compounding) community. Anyone here over 45 knows what good tire rubber smells like and most Chinese tires don't have it (but my Chinese GY Marathons do).
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