Tires - Need Help Bad

[mckincb]

Thanks to everyone for your help. I stared getting cold feet on going to all new 16" wheel and decided to buy 2 new 15" goodyear endurance tires with a load range of E. My thoughts: In my earlier post where I did the calculation, I did not count the pin (5th wheel). When I do I come up with 12,000 / 5 x 1.1 (safety factor) = 2,640 lbs. The Endurance tires are good fro 2.8k lbs. I also purchase the TST 507. Wish me luck!

Thanks again

[2naEagle]

Originally Posted by mckincb

Thanks to everyone for your help. I stared getting cold feet on going to all new 16" wheel and decided to buy 2 new 15" goodyear endurance tires with a load range of E. My thoughts: In my earlier post where I did the calculation, I did not count the pin (5th wheel). When I do I come up with 12,000 / 5 x 1.1 (safety factor) = 2,640 lbs. The Endurance tires are good fro 2.8k lbs. I also purchase the TST 507. Wish me luck!

Thanks again

Sounds good. You still need to go to the scale when you are fully loaded for camping and check your weight.

[SuperEagleMN]

My trailer is the same gvwr as yours, around 11,700 lbs. 2011 31.5fbhs superlite. I just changed to 16inch bobcat style wheels from trailertireandwheels.com and bought 235/80/16 Carlisle Radial HD tires off Amazon for $77/each and they have a 75mph speed rating. Have only traveled about 500 miles so far, but all seems good.

[Chrisb-24]

Hello,
I run Power King Towmax 225/75R 15, 10 ply and I have had no problems so far. I've got over 20k miles on them and they still look good. I had them on my 2012 Eagle 23.5 RBS. When we upgraded to a 2016 28.5 RSTS I had the tires swapped. Our new 2016 came with 6ply tires like every other new camper. I just don't like taking a chance with 6 ply's s
o that's why I run 10 ply's.
I hope this has helped you.
Good luck in your tire desion!!😄

[garyp4951]

Originally Posted by Chrisb-24

Hello,
I run Power King Towmax 225/75R 15, 10 ply and I have had no problems so far. I've got over 20k miles on them and they still look good. I had them on my 2012 Eagle 23.5 RBS. When we upgraded to a 2016 28.5 RSTS I had the tires swapped. Our new 2016 came with 6ply tires like every other new camper. I just don't like taking a chance with 6 ply's s
o that's why I run 10 ply's.
I hope this has helped you.
Good luck in your tire desion!!😄

No offense Chris, but your blowmax tires are done, and need to be changed out to something like the GY Endurance, Carlilse HD, or Kenda, all 10 ply E load range.
I, and many others have had Towmax come apart looking brand new.

[flyboy1]

carl;
I'd like to suggest the following:
1) Have your axels checked for alignment. Go to an alignment shop that does trailers.
Had the axels checked the day I took delivery of my 2018 Eagle. Found 3 of the 4 were towed-in, specifications call for a max of + or - 0.05, mine were out 0.10, 0.19 and 0.26. That would have caused me all kinds of headaches.
2) Have a TPMS installed. I've run and reinstalled in my new FW a "Dill". Transmits both pressure and temperature data and alarms for under pressure, over pressure and high temperature conditions.
3) If you haven't, have your coach weighed. Most trailers loaded are close to the max limit of the installed tires. Upgraded my old and new FW to 14 ply tires. Well worth the peace of mind.
Hope this helps.

[etex211]

This sounds like a typical China Bomb story to me. Your tires aren't blowing out because they are overloaded, underinflated, or overinflated. They are blowing out because they are poorly constructed, and the belts are separating.

You have three options:
1. Replace your tires with Maxxis trailer tires. They are generally accepted as the best foreign made trailer tire on the market.
2. Replace your tires with the new Goodyear Endurance American made trailer tires.
3. Replace your tires with LT tires, if the load rating is sufficient for the weight of your trailer.


I had to use my 20 foot car hauler last Sunday and Monday to go rescue my kid's broken down Jeep. I had two blowouts during that job, bringing the total number of blowouts to four from that set of trailer tires. These were Gladiator trailer tires. That trailer is now out of commission until I buy a new set of tires for it. My new set will NOT be ST trailer tires. They will be LT truck tires, or maybe even P-metric passenger car tires. I used to haul that trailer all over three states with cheap P-metric passenger car tires from Walmart and never had any issues. Then I got smart and replaced them with ST trailer tires. I've had nothing but trouble since.

[CookieMonster]

Goodyear Endurance is seemingly the way to go. "N" (87 mph) speed rating: Finally can feel comfortable driving more like 70 mph or so... that old fashioned 65 mph no longer hanging over the trip. And, on occasion, when passing something, the N-rating is nice. Also, this is a 10 ply (E rating) tire, and, the sidewalls seem to work well in tight turns (like backing into a tight camping space). Mine are the ST235/80 R16 123N E1 BSW version. Running them at 80 psi... more than enough load capacity for my Jayco 31RLTS ...

Just saying, so far so good... about 4000 miles on them this summer, in many kinds of weather and road conditions (for 7300 miles for the trip overall) ... time will tell. Goodyear brought these out in January, 2017

[bdreinv]

This months trailer Life the new 30' Airstream comes standard with 16-inch E-rated Michelin tires that have the LT light truck rating.Finally someone in the RV industry is showing some sense to trailer tires.

[mckincb]

Thank you so much. I think you are 100% right!

[vcbice]

It does sound like speed is part of the issue. For most trailer tires 65mph is the MAX speed.

It would also be interesting to know what your actual weights are. You may find out you are overloading the tires as well.

Supposedly Maxxis tires are designed to run at higher speeds but import laws require them to rate at 65mph. The Goodyear Endurance that I have are rated to 87mph. I feel very safe running my trailer at 65mph with them.

Light truck tires would be nice, if they made 15" versions. But, I may be going to 16" wheels when my current set of tires wear out. I need the boost in height.

[sean.harp]

Our 2017 325bhqs came with Goodyear Endurance ST235/85R16s. They are speed rated as N (87 mph). I never go over 68 and I have a TPMS to watch the temperature and pressure of the tires.

These are great tires so far.

https://www.goodyear.com/en-US/tires...ce/sizes-specs

[skijlw]

Here is some information from Maxxis on speed ratings for ST tires. I am not selling Maxxis tires. I do have them on my RV and so far so good. I had 5 blow outs over the years and have tried different brand tires. I do know that this is the first tire I had that doesn't squat on the sidewalls when loaded and it weighs 10 lbs more than the Goodyear Marathons I took off. I hope the added weight is in the right places to strengthen the tire.

"High Speed" is used to differentiate the M8008 ST Radial from other products we offer that are intended for industrial and/or commercial use, in slow speed applications. The Maxxis M8008 ST Radial carries a "Q" speed rating. However, according to the Tire and Rim Association, the U.S. tire industry specification authority, inflation pressures and load specifications in general for any ST Radial trailer tires without a service description, regardless of the manufacturer, are designed and rated at 65 MPH. However, if the speed is higher than 65 MPH, the pressure and load need to be adjusted according to the following guidelines:
From 66 to 75 MPH – the tire inflation pressure needs to increase 10 PSI (not to exceed the maximum PSI the tire is rated for) but requires no load adjustment.
From 76 to 85 MPH – the tire inflation pressure needs to increase 10 PSI (not to exceed the maximum PSI the tire is rated for) and load should be reduced by 10%.
We hope this information is helpful. Thanks for your inquiry and interest in Maxxis Tires.
Best Regards,
Your Maxxis Support Team

[joggerman]

Trailer tires are rated at a max speed of 65 mph. Speed might be the culprit here.

[Fleetman]

16"s for sure. Stay away from the Chinese pieces of crap called tires. Cooper truck tires with over 20k on my Pinnacle 38FLSA, no issues yet (knock on wood) otherwise, the GY Endurance is the answer. Oh Yeah, stay at 65.

[vcbice]

Originally Posted by joggerman

Trailer tires are rated at a max speed of 65 mph. Speed might be the culprit here.

Most are. The Goodyear Endurance trailer tires are rated for 87mph.

[goldenbetty]

Do you have 225/75/15 10 ply? If they are, you must check axle capacities, 6 lug 5200 lbs? 10 ply tires give you a max of 80 psi. I would run between 75 and 77 psi, stay 65 mph and under. If you want to go 16" wheels, 6 lug, 10 ply, load range E, that would help you, and you could run 70 psi. Checking axles is a good option.

[bzeller]

I have 15” GY Endurance on my trailer. So far they did well over 1700 miles at 70 thru 110 heat in AZ and CA.


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[Dustdevil]

When I towed my trailers, I always used E rated tires and kept speed below 70. Even that was too fast. I had two blowouts in all the years I towed trailers. None on my motorhomes, knock on wood. I now drive below 65 mph, which is where heavy vehicles belong, especially in the hands of amateur drivers. 75 mph with a trailer that heavy is insane. You are endangering everyone around you. Especially during a blowout. I would recommend all load range E tires, trailer specific tires (light truck tires have too much squirm), and slow down.

[SouthCo]

I would have at least upgraded all the original tires after the first blow out. On our second season with the original tires and plan to upgrade them before next season.

As your camper is heavier than mine (I’m assuming), if tire options with 16” wheels offer a higher load rating might be a good idea...