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09-28-2021, 06:28 AM
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#1
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Senior Member
Join Date: Aug 2016
Location: Millersville, Penna
Posts: 361
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Trailer tires blowing! Please help
OK the issue is with a family member who due to shyness hasn't joined yet. Im trying to help them and really appreciate anyones input to their hazardous situation.
The trailer is a "2017- 28.5' KZ Sportsman" 2 wheels on each side. The tires are "Trailer King ST20574R14" Heres what's happening- Last trip, about 1 hr from home they blew a trailer tire. Dang, but it happens. On the way home the same trip they blew another tire. ??????? The next trip, 3 weeks later they blew another tire on the opposite side. Thats 2 short trips and 3 original tires blown. The last trip home they made it without issue. I climbed under their unit with a tape measure and flashlight the last trip. The axels are parallel and I saw no obvious problems. Leif springs looked good, shackle bolts in place, ubolts tight. So, anyone else ever have something like this happen? Seems unlikely if the tires are bad 3 would blow in that short timeframe. Any input would be greatly appreciated!! Thanks in advance.
__________________
Harris
1993-37' Holiday Rambler Imperial
2018 motor, radiator, much more
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09-28-2021, 06:34 AM
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#2
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Senior Member
Join Date: Apr 2018
Posts: 571
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Quote:
Originally Posted by rcnuts
OK the issue is with a family member who due to shyness hasn't joined yet. Im trying to help them and really appreciate anyones input to their hazardous situation.
The trailer is a "2017- 28.5' KZ Sportsman" 2 wheels on each side. The tires are "Trailer King ST20574R14" Heres what's happening- Last trip, about 1 hr from home they blew a trailer tire. Dang, but it happens. On the way home the same trip they blew another tire. ??????? The next trip, 3 weeks later they blew another tire on the opposite side. Thats 2 short trips and 3 original tires blown. The last trip home they made it without issue. I climbed under their unit with a tape measure and flashlight the last trip. The axels are parallel and I saw no obvious problems. Leif springs looked good, shackle bolts in place, ubolts tight. So, anyone else ever have something like this happen? Seems unlikely if the tires are bad 3 would blow in that short timeframe. Any input would be greatly appreciated!! Thanks in advance.
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Yep, this is more common than you might think since RV manufacturers tend to use really cheap tires. They're about as durable as a pair of rubber gloves.
One of the first things I always do is upgrade my tires. On a fifth wheel, many go with the Sailun S637s, but there are other durable options available.
On their rig, I might suggest the Goodyear Endurance as I don't have any experience with Sailun in that size.
__________________
2018 Ram 2500 Megacab Laramie (6.7 SO, 3.42, 68RFE)
2021 Nissan Armada Platinum
2021 East to West Alta 2800KBH
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09-28-2021, 06:35 AM
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#3
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Senior Member
Join Date: Mar 2020
Location: Sun City West, AZ
Posts: 412
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Quote:
Originally Posted by rcnuts
OK the issue is with a family member who due to shyness hasn't joined yet. Im trying to help them and really appreciate anyones input to their hazardous situation.
The trailer is a "2017- 28.5' KZ Sportsman" 2 wheels on each side. The tires are "Trailer King ST20574R14" Heres what's happening- Last trip, about 1 hr from home they blew a trailer tire. Dang, but it happens. On the way home the same trip they blew another tire. ??????? The next trip, 3 weeks later they blew another tire on the opposite side. Thats 2 short trips and 3 original tires blown. The last trip home they made it without issue. I climbed under their unit with a tape measure and flashlight the last trip. The axels are parallel and I saw no obvious problems. Leif springs looked good, shackle bolts in place, ubolts tight. So, anyone else ever have something like this happen? Seems unlikely if the tires are bad 3 would blow in that short timeframe. Any input would be greatly appreciated!! Thanks in advance.
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Trailer Kings aren't exactly held in high esteem here and on other forums as they have a history of blowouts. These are also getting pretty old.
If not simply a 'Trailer King' issue, do you see any evidence of damage to the wheel well above the tires? Any wear? Perhaps the axle(s) is/are bent and is causing the tires to bounce up against the well, eventually causing the blowout.
For replacement of the tires, Goodyear Endurance and Carlisle HDs are both very popular.
__________________
2022 Rockwood Signature 8324SB TT, 36' 8", 11,115 lb GVWR
2019 Ford F350 CCSB, 6.2L gas, 2WD, 4.30 gears
2020 Keystone Cougar 'Half-Ton' 29RLKWE, 33'.3", 9500 lb GVWR - Sold
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09-28-2021, 06:36 AM
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#4
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Senior Member
Join Date: Mar 2021
Posts: 519
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This is just my opinion...My friend has a 25ft enclosed trailer dual axle that we use to haul stuff around. Went up north twice and ended up going through 3 tires. Took it to the local trailer place and found one axle bracket was 1 inch off from the other side.
They cut and rewelded the axle and its been fine for 8 years. Same tires and no issues anymore.
I know you mentioned them being parallel, so maybe its simply the cheaper tires. That would be the easiest fix. Once you figure it out, maybe post back on this thread so others can learn.
Good Luck!
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"A Man's Gotta Do What a man's Gotta Do"
2000 Fleetwood Southwind Storm 30H- Workhorse
2016 Prime Time Tracer 3150BHD
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09-28-2021, 07:06 AM
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#5
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Senior Member
Join Date: Nov 2018
Posts: 1,307
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One thing not mentioned is tire pressure. The 205-75-14 are load range D tires. Tire pressure should be 65psi cold.
No model number of the trailer given to check GVW.
__________________
2018 KZ 270thle
2015 Silverado.
2012 GL1800
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09-28-2021, 07:16 AM
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#6
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Senior Member
Join Date: Nov 2018
Posts: 1,307
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One thing not mentioned is tire pressure. The ST205-75-14 are load range D tires. Tire pressure should be 65psi cold.
No model number of the trailer given to check GVW.
Plus the fact that the tires are 5 years old and should be replaced. Check the date codes.
If they are the original tires, it's time to replace them with 4 matching tires. Goodyear or Sailun.
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2018 KZ 270thle
2015 Silverado.
2012 GL1800
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09-28-2021, 08:09 AM
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#7
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Senior Member
Join Date: Feb 2019
Location: Foley, AL
Posts: 256
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Speed may be a factor ad well as the possibilty of being overloaded. I'm fairly certain that those tires have a speed rating of 65mph
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09-28-2021, 09:38 AM
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#8
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Senior Member
Join Date: Nov 2018
Location: Beaver Dam, Wisconsin
Posts: 5,152
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5 year old tires are normally at the end of their high reliable life. So, many people replace all 4 at 5 years.
On the other hand three in such a short time points to a common problem, maybe random aging out is less likely.
One common problem with travel trailers is under capacity or marginal capacity tires installed by the manufacturer. Actual weight of the TT can be very helpful in diagnosing the problem.
Load it up like is was when traveling. Take it to a commercial truck scale and weigh it. Divide by 4 for each tire's load. Check tire capacity specifications.
If tires were operating near maximum or above, that would explain the multiple failures. The 4th tire is likely to die soon, and even a spare will probably not last many more miles. End of life comes sooner on heavily loaded tires. Disused tires also age faster than light loaded tire in use.
Now that you have trailer weight, look for tires that have significantly higher capacity than the measured weight. Dual axles de-rate capacity but I don't remember by how much.
You may be able to get wider tires with higher capacity or even larger diameter wheels and tires if necessary.
__________________
Paul Bristol
Kodiak Cub 176RD
Nissan Pathfinder 2015
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09-28-2021, 10:39 AM
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#9
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Senior Member
Join Date: Apr 2021
Posts: 124
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Trailer tires blowing! Please help
Quote:
Originally Posted by Nlambert
Yep, this is more common than you might think since RV manufacturers tend to use really cheap tires. They're about as durable as a pair of rubber gloves.
One of the first things I always do is upgrade my tires. On a fifth wheel, many go with the Sailun S637s, but there are other durable options available.
On their rig, I might suggest the Goodyear Endurance as I don't have any experience with Sailun in that size.
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Sad, but true. Had issues on our old fifth wheel’s tires as well. Bit the bullet and replaced them all after less than 1,000 miles. Wouldn’t cost the manufacturers much and and would save a lot of trouble for the customer. Same with using Eternabond on the roof seams and intrusions instead of just Dicor. Unfortunately, profit not durability is the name of the game.
Good luck to OP’s family member.
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09-28-2021, 10:56 AM
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#10
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Senior Member
Join Date: Aug 2011
Location: Enjoying the Western States!
Posts: 19,790
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Overloaded trailer
Tire pressure
Speed
Age of Tires
Quality of Tires
Do an elimination.......
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Full-timed for 16 Years . . .
Traveled 8 yr in a 2004 Newmar Dutch Star 40' Diesel
& 8 yr in a 33' Travel Supreme 5th wheel
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09-28-2021, 11:16 AM
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#11
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,486
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65 psi , is the limit of the standard rubber valve that trailer wheels come with , when replacing tires install metal valves .
I've seen the rubber valves pop right out of the wheel , under load.
Metal valves are rated to 200 psi .
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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09-28-2021, 11:22 AM
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#12
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Senior Member
Join Date: Nov 2015
Posts: 26,837
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Tires are 5-6 yrs old (older?) check the DOT tire date on the last original tire (4 digit number---1st 2 are week/last 2 are year)
Inflation....what psi was your 'friend' using?
Did he check/adjust PSI on travel day?
1st tire blew...that overloaded the other tire
2nd tire blew
3rd tire opposite side blew
All original tires......
So OLD/under inflated-over loaded tires
WHat about the spare...how old is it?
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Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
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09-28-2021, 11:30 AM
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#13
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Senior Member
Join Date: Jan 2014
Posts: 4,669
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It's always a good thing to learn how to read tire date codes. What's the condition of the remaining tire? Cracked? What does the tread wear pattern look like? Tire pressure? Does it match the sticker on the trailer? I'd look around to see if there is a local trailer shop that can actually check the alignment of the axels. It seems odd they'd start blowing at the same time coincidently.
Pretty much what everyone else has said here
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09-28-2021, 11:40 AM
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#14
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Senior Member
Join Date: Aug 2019
Location: SC
Posts: 354
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Well the good new is they've already replaced 3 of the 4 tires! I wouldn't move it again until the 4th tire is replaced, and I would replace the spare also. Hopefully, they replaced the 3 blown tires with a better quality tire.
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