RV Trailer Tires vs. Light Truck Tires - Need To Know Info Before Buying

[@roydavis2242]

Very good video. I retired from the tire manufacturing and our primary product was specialty tires. You are spot on. I have needed to explain the difference may times while on vacation throughout the years. Something you may not know is that the compound for trailer tires has ingredients that help resist uv rays but till cover them when parked. Know your axle rating and match the tires.

[@koslund11]

You hit it right on the head. I did so much research before my trip to Alaska last summer. Every thing that I learned about tires after visiting so many different web sites, you put it all into an 8:51 min video. Removed my fith wheel ST, D rated, max 65 mph, and installed Goodyear Endurance ST, E rated. Max 85 mph. Had the truck and trailer weighed, purchased the eezRV TPMS, replaced the truck tires and spare. Monitored the tire temp/pres info thought out the entire trip. Inspected tires on truck and trailer daily. Some of the roads in Alaska were really bad. Had zero issues there and back. 11750 miles. Tires look good and if worn, it wasn't enough to notice. It feels good that we think the same way about tires or your thinking like an old guy.

[@jasonlessard2373]

Great job. I’ve been in the tire business for 20yrs and couldn’t have said it better.

[@johnr8439]

David great job on the tire video. You have a much better understanding on tires than you give yourself credit for. You are correct excessive heat is one of the major reasons for tire failure due to over weight and low PSI. Retired now after 33 years in the tire business the number one reason for tire blow out and failure is road hazard. Ugh... those pesky nails. Love the channel!

[@James-il3tq]

Awesome information in this video. Only piece I'd mention is not all ST tires are 65mph rated. Some are rated (in sidewall) for 70, 75, 80 and even (crazy enough) 90 mph! Just picked up a set of Carlisle Radial Trail HD tires today rated for 80 mph.

[@ryanjohnson9325]

I own a rv repair shop just north of Elkhart and my customers that run 30k+ miles a year with large full time fifth wheels all use LT Firestone HTs because of blowout damages caused by ST tires. I can't speak to whats better or worse but in 40yrs and lots and lots of blow out repairs not one had LTs on it. Alot of higher end trailer manufacturers now offer LT tires as a option

[@dougtexas]

Very well thought out presentation. A small factor some are not aware of also: One rating up is good for temp, speed, and ply. However, up-rating too much will cause trailer bounce which leads to excessive torques to the axles and hitch. It can also contribute to over-flex'g the framing of the trailer.

[@recyclebills]

Exactly, trailer tires are designed to drag when cornering. Well built trailer tires like Kendas have always served me well.

[@warrenhoke1421]

hit the nail on the head . short, accurate, and solid advise very few people use till they have a tile failure.

[@tufelhunden5795]

I also use a laser thermometer to measure the hub and tires to see if a tire is getting hot for some reason, such as a bearing going out, low air pressure or a bent axle. Just another way to extend tire life and be safe.

[@MrAlbarry51]

I think you did a great job providing the FACTS about choosing tires for your rig. Quoting a recent broadcast I heard on The RV Show USA, from a retired tire engineer. He said exactly what you pointed out. “The main reasons you will have a blowout (other than a road hazard) are under inflated tires, load is too heavy, driving speed is too high and tires are too old (older than 5 years). All tires are manufactured to DOT standards and just because they are ST rated or manufactured in China doesn’t make them a bad tire”. I’ve put over 10,000 miles on my 2014, 32 foot, coachmen apex travel trailer with original factory tires and I have not had a blowout. I will be replacing my tires this year because they are 5 years old.

[@bobripley7138]

Good job explaining a very misunderstood subject. Just want to throw in something we experienced with our 1st trailer which goes against one of the things you recommended. When we got our Aliner it was used and the tires on it were completely bald in the center but had original tread depth on the sides. I figured they'd just been overinflated. I inflated the new set of tires to the pressure stated on the sidewall, checked it regularly, and found that the exact same thing was happening. Had to replace those tires prematurely. The next set I reduced the pressure by 10% and had much more even tread wear. The moral of this story is that you need to inspect your tires for even wear and take action if it's uneven ( in any way). A TPMS system is a wonderful tool but visual inspections are still necessary. Thanks again for a lot of really enjoyable videos!

[@dannelson538]

Z

[@daveybernard1056]

agree

[@guywood67]

Hi David, one thing to clarify. ST tire speed ratings are not the same for all ST tires. Our tires have a speed rating of 81 mph. Suggest users look up their specific tires based upon the codes on the tires. Great video, loved it.

[@James-il3tq]

Well said. I seen a set of Maxxis ST tires Q speed rated (99 mph). I opted for a set of Carlisle Radial Trail HD ST tires rated for 81 mph. Fast enough for me! 😁

[@tonywpiche2263]

WOW, WOW WOW , Just found you guys on the weekend and as I am healing from a minor operation, I binge watched your journeys... I'm 62, and just wanted to say what an inspiration you youngsters are. Your honesty, zest for life, and frank asessments to stuff, and locations, as well as caring for each other and your pet baby's. Just wanted to reach out and say thanks again, I'm a fan. Oh, I love the Rottie, and the Cats. Not so much the wabbits. Long may your journey be.

[@FloridaBoyBushcraftSurvival]

I had a blow out last month on I95 in Florida on the way to Key West. Well over 100 degrees, not fun, I was lucky. No damage other than it dislodged the fender which I was able to repair when I got to Key West. My tires are 5 yrs old and I feel like I am on borrowed time. I am going to look into LT tires. Thanks!

[@DocRevo]

The load range / axle ratings is the bigger consideration to me. Every tire problem I have witnessed, or heard of directly from the affected user, have always been situations where the trailer axles / tires where running at full load. Many low-end tow behind RV's have running gear barely capable handling the load and not much cargo carrying capacity in the unit.

[@christopherrice1375]

My 2018 Heartland North Trail 22FBS came with 205/75/14 C rated (50 psi max /65 mph max) china bombs. I immediately replaced them with 205/75/14 D rated (65 psi max / 87 mph max) Goodyear Endurance and we have not had any problems in the 1-1/2 years we have owned the trailer. I highly recommend the Goodyear Endurance tires.

[@jerrybarger6427]

Yes you did a great job. I would add that the PSI in tires should be checked when cold. Also if you go up on your load range you also make sure your wheels (rims) will carry the load and take the higher PSI. NEVER add air to a tire that is run flat. When airing up tires you need a 3 foot leader hose so you can stand off to the side just incase it explodes. Stay safe and safe travels.

[@erichill5679]

Nice video. I believe that filling tires to the max pressure listed on the sidewall will cause them to flex less when hitting a pothole or other road hazard making them more likely to blowout. My trailer lists recommended pressure. I also will emphasize the stronger bead on the ST tires. On my gooseneck horse trailer the tandem axles are near the rear of the trailer and the tires will really flex outward when backing into a spot at very low speed to the point they look like they may pop off but never have.

[@bmc81]

Great comments. I have two friends that have a 42' and 43' fifth wheel trailer with toy hauler garages. They have both switch to a load range G w/ST tire and the pressure in them is recommended at 110 PSI however the tire dealer said the pressure should be at 100 PSI. He sells 80 to 90 sets a week of these bigger tires. These fifths are both triple axle due to the weight. One of my friends does not like to keep his speed down which we have told him if he has a blow out he will have a very hard time getting his 43' fifth under control to stop. He has already had one blow out that almost took the whole bottom of his fifth out. Maybe he will keep the speed down now.

[@herb7877]

Good video. As you stated, 'age old argument LT vs ST…’ Having towed trailers for over 40+ years and a relative in the tire biz, I’ll stick with ST for the added sidewall strength. Most failures are due to the 3 items you mentioned but I’d add 1 and make it #1; "Chineese Poppers” or cheap tires. Get rid of them, spend a few bucks for good quality tires and move up a rating and you'll eliminate a majority of issues. It’ll cost you a lot more in the long run if you don’t. I’d also inflate my rear truck tires to the max rating on the side wall & front ones to about 80-90% of max per sidewall info and not what is on the door jam of the truck. Door jam PSI’s are fairly low and are for max comfort vs weight. Next subject: keep your bearing well greased !

[@williamrizzo1285]

I agree with you 100% on the air pressures for the tow vehicle I do the exact same thing.

[@ReflectedMiles]

I tried to find someone at a high-end local tire shop who believed the sidewall performance claims for ST tires. If anyone believed it, they weren't willing to admit it. As one pointed out, if you take the most famously expensive travel trailer brand (Airstream) and you order one upgraded to the best tires they offer, it will be delivered from the factory with LT tires.

[@tylerhunt1234]

This is inacurate, the best way to determine the inflation that your tires should be at is by weighing each axle of your tow vehicle while towing. When towing my trailer the front and rear axle of my truck were the exact same weight. You should then reach out to the tire manufacturer and ask what the recommended pressure is for that weight. I run all the same pressure in all the tires of my truck now. (Prior to weighing my truck I operated under your school of thought for tow vehicle tire pressure)

[@ravenfeather7087]

@@ReflectedMiles What Uncle Joe at the local high-end tire shop says may or may not be factual. How many of those people actually know a lot about tires? Some maybe. The fact they sell tires and put them on vehicles does not mean they're experts. If they have a high profit margin on an LT tire and a low profit margin on an ST tire which one do you think they're going to try to sell you? I think that may be particularly true of an RV manufacturer. These companies (corporations?) are in business to make a profit. Do you seriously not think an RV manufacturer will not cut corners to make a profit? A lot of the stuff put on the market is junk slapped together as quickly as possible. I think that in general you get what you pay for but I know from experience that is not always the case. Branding is a big part of it. Slapping a well known and respected brand on poorly made products may be more common than you think. Airstream? They're still stick built aren't they? Subject to leaks? Easy to damage aluminum? Actually heavy in comparison with better built more modern rigs? Old outdated technology with a big name and a big price tag?

[@ReflectedMiles]

Raven Feather My point was that, when there is any constraint on price and profit must be protected, ST tires are what get put on by both a legendary RV manufacturer and a tire shop that outfits the performance-vehicle and racing community. However, if you say to them, “Look, money’s no object-I just want the best tires you can put on my trailer,” suddenly both completely unrelated companies are staking customer satisfaction on LT tires. In fact, I would have to go back and check to be sure, but I think they are even the same brand-Michelin. I suspect they just use over-rating on the load capacity to get extra sidewall strength.I don’t have a single LT tire on the two trailers I own, but I am very tired of decades of ST failures leaving me stranded and these practices at the high-end combined with so many failures of different ST brands has led me to a different conclusion than standard industry claims and practices. There is probably no other industry as consistently shoddy and misrepresenting of the facts than that represented by the RVIA.They give “engineering” a whole new definition (“a sales manager with a CAD program”). That’s why they can look at you with a straight face and tell you that a piece of foil-faced bubble wrap has the same R-value as 12 inches of fiberglass insulation in your house attic (its actual value is approx. R-1 and it is illegal under federal law for the material’s manufacturers to claim otherwise). They just don’t care.

[@neilrankin9945]

Of all the KZbin channels I watch I am so grateful you have decided to share your experiences on KZbin. I have learned so much about tires, solar systems and so much more. As a rv newbie i consider your channel must read/ view tv. Looking for to your next episode!

[@AndreenMotorsports]

I don't know why, but people seem to always cheap out when buying tires. Not just for their trailers but for everything they drive as well. All of our trailers get new high quality ST tires every 4yrs, regardless of tread depth or mileage. I have found that 4yrs seems to be the magic number and the chance of having a blowout increases dramatically after that. I also install a size taller when possible and at least one load range higher. After 15yrs and thousands of miles of tandem towing the boat behind the 5th wheel, we have had only 1 blowout. It was my fault, the tires were 4yrs and 5 months old 😄

[@reimersorama]

Agreed, I never knew why someone would spend 20K-80K on a trailer then buy garbage $90 tires. Just asking for trouble. I like your thinking on the every 4 years idea. Makes alot of sense.

[@didibolter9362]

@@bobpeg7457 Good for your brother, smart man!!

[@miketrowbridge3284]

@@reimersorama AND...Why do people bulk at buying a Propride P3 or Hensley hitch when investing 50K-100K on a truck and trailer?

[@michaeldoherty2289]

Never put an LT tire on a trailer. Its just wrong. Sorry.

[@Adiscretefirm]

That makes a lot of sense, many years ago when I started driving my father gave me a piece of advice I have followed, buy 5 year batteries and replace every 3 years, it isn't much money and I have never been stranded because of a bad battery, when a dome light was left on accidentally overnight it still had enough charge to start the truck and when headlights were left on it was still able to take a jump charge and not lose capacity.

[@miked5728]

Good information... I had not realized the difference in sidewall thickness and flex. I have not towed a travel trailer yet, but we've towed a boat around for 22 years, and I've noticed a difference in trailer sway depending on the tires I had.

[@SB-pz3xg]

OMG how do you explain trucks with heavy loads all the time! I think you've read the simple guidelines and re-read them. Not sure, but i think I'd trust grandpa's advice.

[@jaytibbles2223]

You are completely correct about causes of excess heat. Most people drive way too fast for the tires on the trailer. As an engineer, I can tell you that we like to run things at 75 to 80% of ratings. That means a speed rating of 65 should be towed at 55. (Do you see the signs along the highway that state such a maximum speed for towing? THAT is one reason for those signs)

[@jimbo5635]

That why I run LT tires, I can run faster. There are more blow outs with ST tires. That is a fact.

[@Smedleydog1]

Excellent information. Most people never consider their tires other than checking inflation pressure. Another thing to think about is, have your trailer tires balanced. Some tire shops don't do it unless requested by the customer. And I'll bet very few people know that the ST tire is only rated to 65mph.

[@tigersmoonlight]

Thank you so much! My tire recently blew and totally ripped up the inside corner by the door aswell... now I’ve been looking for durable affordable tires! Thanks!❤️🙏🏼

[@georgemcelroy9441]

Thank you, great video. I use i10 all the time and these rvers fly doing 70. 75 99% have no clue about tires. I own one simular to yours, I make it my responsibility to know as much as possible to keep my family safe

[@allan6021]

I totally agree with your opinion to use ST tires with the right load rating. Back in September, 2017, the RVIA changed its tire recommendation for member manufacturers and they now recommend that manufacturers install tires with a load rating that will give a weight capacity (for the pair of tires) of at least 110% of the axle’s weight rating (GAWR). On my fifth wheel, they used to install a Load Range D tire but my new 2019 has Load Range E tires - still Castle Rock though. Having tires rated for 110% of the GAWR should be a minimum. Goodyear Endurance, Maxxis M8008 and Carlisle Radial Trail HD all have respectable reputations.

[@cslay06]

You’re awesome, David. Good stuff. When my factory Goodyears are ready to be replaced, I will not be skimping on the replacement ST tires.

[@didibolter9362]

I agree, David is extremely wonderful!!!!!

[@PC-uh6hk]

I don't own a travel trailer yet and am looking at large cargo trailers in the realm of 16 to 18 feet in length and up to 10,000 lbs of capacity and this info is very useful for me.

[@geriatrictrippin]

Very well done video !! I could tell you did your research. I was a tire tech for many years before I decided to drive 18 wheelers for a living. I know tires !! Again, very well done.

[@JoelPit]

Thank you I've been shopping for tires and I'm get ST tires due to the same reasons the current sets I have are rated to 85 mph but I still try to not go over 65 mph as I am towing a trailer and I never need to get any where fast #Full timing is true life

[@bigfokkerdog]

excellent video! Your ability to explain the tires is outstanding. I recommend this video to anyone trying to understand the tires on their trailer.

[@gregmoore3420]

I have 12 ply on my motor home which is probably over kill. However for the safety of my family I don't want to take any chances. Statics on RV fatalities show that the majority are tire related. I found that Les Schwab Tire Centers are extremely good for the RV'er. Tires, suspension, brakes, anything having to do with the under carriage of your RV they can help you with. I also like that they are nationwide.

[@rogeredrinn4592]

Excellent trailer tire info, well done research and video. I had a blowout on my first trip with my used 5th wheel. Installed a TPMS after that and it saved my butt twice. TPMS is the way to go.

[@randydolff170]

Hi ,Canadian🇨🇦🐴🙂👍 followers have a question that everyone thinks of can you increase width on a 15 in trailer tires? Got 205/75 15 tires thinking of going to 225/75 15 then you can go 10 ply 1" difference in diameter .better load and 10 ply tires.Have 2" on sides and 2 3/4 from bottom of trsiler ,enough??

[@bertkelly7650]

I like how you followed your father's advice........

[@FateUnbound]

Everyone, including Jenni's grandfather, has an opinion and/or advice on everything. However, no one should blindly follow advice without doing their own research. Which is what I did, my own research, and then I made a decision based on what I felt was appropraite for our own situation.

[@bertkelly7650]

@@FateUnbound LOL, I know the type.

[@familyfuntimes1132]

When replacing my 5th wheel tires last fall I found that only Goodyear and one other brand are made in the USA. I went with the Goodyear Endurance tires. I can drive 87 mph, although I would never go that fast. They cost a little more, but the peace of mind is worth it.

[@didibolter9362]

Definitely!!!!

[@meldeer6253]

THANK YOU i did not know the makeup of the ST/LT tires i have all ways stuck with the ST tires BUT . i all ways up grade from say D TO E i all ways go higher rating ,,, i think a lot of people dont know or may not care but, iv hulled trailers most of my life and, dont want to have problems. your both very good speakers. SO GLAD TO SEE THE DOGGIE & CAT'S & RABBITS COOL thank you again

[@AVHaxor]

After watching many of your upgrade videos I would like to ask the following: 1. Did you select your RV, specifically the price point, knowing you were going to do all of these upgrades? 2. Having to do it over would you have spent more to purchase an RV with your upgrades in place? 3. Do the pros in doing them yourself (you pick the equipment, better functionality & performance, you know it's installed right) out weigh the cons of voiding the warranty and incurring the additional costs? Lastly the bunnies need more screen time! Thx

[@HSkyler]

David, you're my go-to expert tires, solar, composting toilets... thank you!! Great video and information!

[@FateUnbound]

Thanks! 😉

[@dougwilliams2890]

Also, don't buy cheap tires, get a reputable brand ST or LT, and check the model for reviews. I now replace my trailer tires with LT range E no matter how heavy light the truck or trailer. I've never had any sway problems buying Nexen Roadian AT Pro RA8 running them at 75psi. I'm also paranoid about low pressure, and check before moving any/every trailer, also good to check wheel bearing grease too, and carry 2 trailer spares. I've personally never had any tires blow out. Lucky, possibly, or the LTs I've been buying are just high quality, and overkill is underrated? Love your content, god bless.

[@richschroeder3693]

Great advice. I put on a tpms on my coach for added insurance. I just turn it on, and within minutes it shows me all the pressures!

[@almoody7155]

a fourth reason for blowouts, and perhaps less common is not towing a level trailer. I have seen rigs going down the road too high in the front or rear and this overloads one of the axles and overheats the tires

[@doctoordan]

Excellent information and well presented. I glanced through most of the comments before I commented and noticed something that is ALWAYS missed. Pay attention to your SPARE TIRE. No one ever checks the condition and/or pressure of their spare tire. How old is it? When was the last time you removed that pretty (but outdated) tire cover and actually inspected the trailer spare? I had one once that had dang near rubbed a hole in the side wall. Also had a spare trailer tire that just exploded on the back of the trailer one day while I was taking a nap. Not a bad idea to check the truck spare also, they experience rubbing also.

[@miket.9172]

Spot on about the spare. I didn't think to check mine until after I got it home after purchase (used trailer). The spare has a plug in it! I always think the back up of anything should be in better condition then the primary. It's the only thing keeping you from becoming a pedestrian

[@kellyburdette4123]

You nailed it always upgrade your tires make sure you balance them they don't come that way

[@xdcsdiverx]

Great video! One thing you did mention was upgrading from a load rating of "C" to a "D" rated tire to provide additional capacity. It should be noted that the rim max pressure should be accounted for as well. My 26' TT had 205/75R14's from the factory at 50 PSI. Moving to "D" rated tires requires increasing the PSI to 65 PSI to maintain the "D" rating, but the rim is rated to 50. Its usually stamped on the rim itself. Just a few thoughts when upgrading you tires. Thanks again for the video!

[@JetNation]

Wait, so what do you do in that instance? Is increasing to 65 psi not a good idea with the rim rating of 50 psi? Will I need to get a new rim for the new, higher load rated tire? I appreciate any info you could provide. Thanks

[@xdcsdiverx]

@@JetNation So right out of the gate if you put on a 65 psi rated tire on a 50 psi rim, you are exceeding the rim PSI by almost 30%. Also, if you drive in hot conditions, have a heavy trailer or at highway speeds, you could be increasing tire temp which adds to PSI on both tire and rim. My recommendation is to pair new higher rated tires with new rims at the same time. I was going to a D or E rated tire, but decided against it due to cost of replacing everything. I'm only a weekend warrior camper, so no biggie with my C rated 15" rims. If you have already mounted the 65 psi tires on a 50 psi rim, I doubt you will have tire issues, but you may be over spec on the rim. But dont lower tire pressure! That will absolutely destroy your tires and is unsafe.

[@JetNation]

@@xdcsdiverx Thank you so much for that info. In truth I'm not sure what my rim is. I'm in the market for new tires at the moment and didn't even think to consider the rim rating. You have helped me a great deal. Thank you!!!

[@xdcsdiverx]

@@JetNation Glad to help. If you get some time, pop one of your wheels off and look on the rim itself. It may be stamped or have raised lettering indicating rim max PSI. could be on the backside of the rim where you cant normally see it. Good luck!

[@JetNation]

@@xdcsdiverx Good idea. I'm actually getting some new tires put on tomorrow. Ultimately chose the Cooper HT3 over the Firestone Transforce HT2 and some others. I'm going to ask the mechanic to take a look at that and I may. buy different rims if I need to. Again thanks. It's good to know there are people out there who are willing to help. I'm somewhat of a noob! lol

[@NormRidg]

Great video. And a lot of good information. My issues were low cost stock tires and low air pressure. Like you we up graded on a trip when we lost 3. No issues since.

[@tarotnessxx4014]

off topic...but I love it when KZbin puts a captivating ad on your channel that actually interests me, lol, because I know it helps you guys $$ I just watched an ad that lasted over 4 minutes! and I actually clicked on the banner to go to the site and order a ticket for the Shen Yun show! I try to watch a lot of ads that come on before your video starts (to help y'all out) becuase I know it can have a positive impact for you guys. This something that some KZbin watchers may not know...another good way to easily help out the Creators of channels you love and subscribe to is to watch (and even more so when you click on the ads) This one was really good. :D

[@FateUnbound]

Thank you Melissa!! You're right watching the full ad really does help and the KZbin creator gets more for that view. And if the ad is clicked and especially if a purchase is made then the creator gets even more from that view. Thank you for your support, you're awesome 😄

[@melissam0ss]

Fate Unbound awe...🤗

[@mainwayne1352]

Cat scale there are two apps for that. The first one is called CAT scale. This one will give you the location of a cat scale. The second app is called weigh my truck. This allows you to pay for the scale from your phone. Because I know a lot of you may not be tall enough to reach that button, to call the weight master.

[@lonelyprepperhomestead911]

Naturally .. The RV manufacturers install the bare minimum load range tires that appear to meet specs. For me, immediate tire change is first thing on To-Do list for new trailer. :)

[@tarotnessxx4014]

um...not all RV manufacturers install the cheap-o tires...mine came with really good high speed, high load range many ply tires-standard :D

[@lonelyprepperhomestead911]

@@tarotnessxx4014 ... Which brand was that?

[@tarotnessxx4014]

@@lonelyprepperhomestead911 I have a 2018 Airstream International Serenity :) (saved all my life for it, lol)

[@tarotnessxx4014]

@@lonelyprepperhomestead911 If you meant the tires...they're Goodyear brand

[@lonelyprepperhomestead911]

​@@tarotnessxx4014 ... Sniff, darn Flu bug. I never said anything about cheap tires. What I was referring to was the fact they will use a 'load range' that just meets specs. It could be the most expensive tire made ... but if load range just meets specs .. there's a good chance people might accidentally breach that range with their weight. I've seen new ones blow apart even though weight was in limits. If they just went one range higher, would be a big help in my opinion. If you got better tires on the Airstream, kudos to them. But, as you know, they're kinda in a class of their own. :)

[@lmallard3788]

Thanks again for your videos. I remember people trying to convince me to go with LT tires on my RV. I did not take their advice. I have to do some maneuvering when backing into my home parking slot and I need the capability of ST tires on my utility and rv trailers.

[@kalbc311]

Just found your videos. I really appreciate the videos. Lots of good info. Some people just like showing off. You guys are really putting in the effort to help people considering following in your footstteps. Peace be the journey!

[@jimb6934]

Thank you for a simple explanation of tires based on facts. Keep doing what you do. I started full time rv'ing about 5 months ago partially based on your videos.

[@PCAPastorTrav]

That was tremendously helpful. And you sounded pretty “expert” to me. I’m going to check my tire specs and weigh my boat and trailer.

[@RKennethSchamp]

You are spot on, good summery. I will be going with ST tires for sure.

[@FateUnbound]

After 6 years on the road with ST tires we've had zero blowouts, not one. And that's out of 3 tires changes on 4 tires so 12 tires total. It's all about not overloading, not driving over the speed rating of the tires, and keeping them properly inflated.

[@jacksummers1736]

A fourth cause of heat to the tire blowout problem (most overlooked especially by boaters) is wheel bearings. The grease dries out and becomes useless. This is problematic for boat trailers because they are subject to being submerged in water regularly and is why a lot have a zerk fitting on the hub. I have my wheel bearings repacked and seals changed at each tire replacement. Ever noticed that most of the trailer tire replacement on the side of the road are boat trailers?

[@michaeldoherty2289]

Grease doesn't "dry out". There is no water in it to start with. It may leak out due to a faulty grease seal, or evaporate due to heat and a bad seal, but it simply cannot dry out..................

[@vincentbonello5725]

Very intelligent explanation and definitely the proper choice. Thank you.

[@EverythingRVbyPat]

Great video. I'm am going to purchase Good Year Endurance when I need tires next time. Thanks for the information.

[@markhopson6991]

I have been using the Goodyear endurance on my toy hauler and Horse Trailer for a few years now due to my factory toy hauler tires bubbling. They have been great I have towed the toy hauler approximately 8000 miles with no issues they are great tires.

[@WhatTheHammar]

Hey David: Thanks for another well thought out and produced video, I always appreciate the information. I actually just stopped at my local America's Tire® company (not a sponsor) and took advantage of their "Air Check" station for my motor home. They noticed that one of my tires was quite a bit lower than the others. It is all aired up and I will be keeping an eye on all of them. Safe travels to you and your crew.

[@charliemcelveen2418]

Thank you for a concise and thorough review.

[@ravenfeather7087]

Did this same thing last year. In an attempt to be rational about which tires to buy I did a little research regarding how tires are rated according to DOT spec.s. And looked at reviews. Seemed like a better approach than asking Uncle Joe what he thinks. I went from load range C ST tires to road range D ST tires. And went up a little in terms of speed rating. Finding the right tires seems complicated. Many people like to talk about Chinese Bombs and other subjective criteria. Demonstrating a preference for US made tires. Yet to my knowledge there are only 2 "US Brands" of tires; Cooper and Goodyear. And there are many Chinese owners tire manufacturing facilities located in the US. So what's a US made tire? Does it matter? I'm just glad there are established ratings and at least supposedly those ratings are enforced by the US in order to protect consumers (and I believe that if they're funded they will do so). MY uncle Joe is a BS'er and you can't believe a word he says.

[@wcarlhepker4806]

Most RVs come from the manufacturer with eight ply tires. I do not allow eight ply tires on my trailers, whether RV or cargo. I always specify ten ply tires. From there you can choose LT or ST, load range, etcetera. It has made a big difference in tire reliability on my trailers.

[@MYCHANNELWITHMYSTUFF]

@ W Carl Hepker - a good ST tire (load range G) has 14 ply's not 10. Depends on Gross weight of trailer. My trailer came with 10 ply tires and they met the bare minimum for load on an 11000lb trailer.

[@lyfandeth]

Also note that for every 10F temperature change, there is a 1psi pressure change. So 35psi on a 32F morning in the mountains, becomes 42psi if you next stop is 85F someplace warmer. And vice versa. Expecting 40F temp change from locations? Right, check your tires!

[@gregorymadey5299]

Nice video ... appreciate your work putting these together! One comment about inflating the new tires to 65 psi versus the original 50 psi ... if the TT manufacturer recommended 50 psi (unless you've changed the tire size going to the new tires) you may not want that extra pressure. It will give your TT a harder ride (harder shocks and vibrations into the suspension), and could damage your springs, axle, shock absorbers, and increase vibrations to the cabin. Yes, they might run a little cooler, but the tread may wear uneven, more in the middle of the tire. You might try collecting data on the tire temperature at 50 vs 65 (and between) and see if the temperature is significantly lower with the max pressure. If your trailer is at its max GVWR, then maybe more pressure OK, but if below your max GVWR, higher pressure might be bad. PS: always look every week-end for your next upload!!

[@icebrakernh]

Truck tires hold up very well and they are more weight baring than most trailer tires. So many say the trailer tires are made to sit for along time and that's wrong. You only need an all-season Truck tire on the trailer. I do not recommend Mud tires or mud and snow. if you run a 10 ply tire on the trailer the truck tire is great.

[@Angel_Ventura915]

Great vid and very informative. I just bought a small travel trailer. The tires looked like they were in great shape. But they were mud terrain truck tires. On the drive home the treads peeled off one of the tires. The trailer came with a spare so I changed to the tire, When I got home I let the guy know one of the tires blew out, He apologized and said that the receipts for the tires should be in all the paperwork and to see if they were still under warranty. I found the receipts and the tires were 7 years old 😅 I have truck tires on my truck bed trailer, and on my utility trailer but I was interested to see if it would be possible to use truck tires for the travel trailer. After seeing your video I think I'm gonna go ahead and go with trailer tires.

[@Servinghimalwyz]

good stuff, David. Thanks. As a side note, I enjoyed watching the evolution of the minimal cloud cover behind you.

[@edwardlooney4147]

Thanks for sharing your conclusions based on all your research!

[@risingsunadventuretravels9908]

I switched from Goodyear Marathon to Goodyear Endurance Load range E You can drive 87 miles per hour without any overheating of the tire. Says that on the tire.

[@burtbennett]

David, not ALL ST tires are rated at 65mph … My Goodyear Endurance ST tires are given an "N" rating which is 87mph.

[@danceswithbears2521]

I didn't know that. Thanks.

[@AlliChuckAdventures]

My Gladiator TT Tires are “N” rated as well! So far these have really held up well!

[@FateUnbound]

Great! Even better!

[@AlliChuckAdventures]

Fate Unbound Alli’s cousin recommended these gladiator tires. You can get up to like 10ply if you have 15in rims. We only have 14’s so 8 ply was the most they make in that size. Still such an upgrade.

[@danceswithbears2521]

@@AlliChuckAdventures Just about everyone has told me to replace my trailer tires with LT tires. The ones you have sound a lot better. Or the Goodyear Endurance. I've already had one blowout with my cheap C rated tires.

[@timlitzsinger7366]

Nice job. You are dead on. Thank you for doing your homework and putting out accurate info.

[@Weak_juan]

LT probably gets worst mileage but they last longer. I cant do LT because of my tire size...205/70r14 and I'm not committed to changing 4 rims. Junked the castlerock st and replaced them with goodyear endurance. Tire cover for uv like you said is a great idea too!

[@allenburns3177]

As an elevator tech testing elevators it was very common to overload a truck, 1 ton truck carry 7500 lbs of test weights sometimes. Short term problems tire failure, long term brakes, axles, rear ends, suspension parts. Better to have plenty of rating on your tires compared to actual load. If you overload, it will fail. It is not if but when. Then the when determines if you live or not.

[@keithdahmen8245]

Thanks David, I always appreciate your videos. They are very thought out. I know you have done your research. Great Job.

[@chrisstewart1116]

I’ve towed heavy cattle and flat bed trailers (12k-20k)....over the years have replaced all of the trailer tires with e rated lt tires.....lt tires are much better made.....grandma pa was right

[@rollandbrower7827]

Excellent video. In researching tire pressure and connecting with the tire manufacture I don’t agree with with inflating an ST tire to the max Pressure. Doing so can over inflate tires causing tire damage just like an LT tire on a vehicle. The manufacture stated to weigh the trailer, then use their inflation tables to determine the PSI and add 5-10# for a safety margin.

[@tenkaraintheiowadriftless]

Excellent video David...thanks! A common misconception among RVers is that they should simply pump up their tires to the maximum inflation pressure stamped on the sidewall. In fact, the recommended pressure depends on load rating and the load on each wheel. As an example, here are the recommended tire pressures versus loading for the Endurance ST: www.goodyearrvtires.com/pdfs/rv_inflation.pdf

[@tgriebe]

Exactly right.

[@crazybob1954mo]

Sorry... You Are So Wrong... Those are NOT the Recommended tire pressures!!! That is just a chart to show how the tire Load Limit is DERATED when running lower air pressures! There is No Way Goodyear would recommend running 25psi in their Endurance ST tire!!! BaHaHa

[@danbrophy3785]

I’m with you. ST tires are the way to go.

[@oldtimefarmboy617]

Another thing to take into consideration is that the tire also need to be what is/was known as bias-ply tire whose sidewall does not flex like a radial tire does.

[@kingstonsean]

You specifically mentioned trailer tire specs compared to "passenger" tires. LT tires are not passenger tires. "P" tires are passenger tires.

[@rodneylw10]

I hear you and this is the common knowledge talk; however, Many Many trailer owners have gone through the major trailer tire companies with poor results and posts on forums. Also, most trailer tires, regardless of brand, are made in China. If you keep digging for info, you find that some RV companies have upgrade tire packages that add LT tires to trailers! Also, Michelin has a load/PSI chart that recommends pressure to load ratios instead of maximum pressures. Metric rated tires are much stiffer and if set to 80 psi, it will shake your trailer apart. So, if you upgrade to the next letter the wheel and the camper have to be able to handle the pressure. I know my post goes against common knowledge statements but this is what I have found over the years.

[@rw7632]

LT D rated are available. I would consider them for off road use. STs won't hold up to rocks very well. There is every reason to use 8 ply d rated all terrain tires on a trailer. ST tires are weak. LT will also eliminate speed concerns.

[@Patriotvb]

Great job, David. Best explanation and advice I have seen yet.

[@curtwalp5120]

My 5th wheel came new with load range E tires max pressure of 80 psi. I replaced them with load range G tires with a max pressure of 110 psi. However, since the trailer placard calls for 80 psi for the weight of the trailer, I run the new tires at 80 psi.

[@allenmckinney9533]

I saw a big dump trailer on the side of the highway once that was fully loaded with scrap metal. Both axles were broke in half. As a Lowe's employee I've seen A LOT of people that thinks if something physically fits that it's good. Not so people not so.

[@richardkoch8752]

Tires are not the thing to go cheapo on. They're the only thing that touches the pavement. Endurance seem to be the way to go now. Glad to see more and more manufacturers are installing them at the factory. The next thing to improve tire life is to have them balanced, then a annual or ten thousand mile HAND inspection, clean, repack wheel bearings and seals (not E-Z Lube) Then consider upgrading your suspension with a leaf spring equalizer like a Cre3000 or Dexter E-Z Flex.....there are several different choices for suspension upgrades. Have your brakes checked. Travel day tire pressure checks, feel and visually check the tires, safe speed and you have done your best. On really hot days slow down some to allow for the extra heat build up.

[@troy1420]

Thanks, i know way more about my rv tires than i did yesterday :)

[@ACRPC-dot-NET]

Most cheap ST tires are only rated to 65mph, but the higher end ST's you tend to find 87mph speed ratings, especially as you move up in size and load ratings, I definitely worry about blowouts a lot less with Load Range E - 87mph rated tires on my rig, not that I ever tow at 87mph, but I might hit 80mph briefly while passing someone on the interstate and it's nice to have some margin left.

[@puroarl1]

Great info, thanks. Going to uprange ours when we change out. Looks like sticking with STs make sense.

[@AI-uk1qt]

I so appreciate the detailed info...Thanks!

[@Sadie04074]

Thanks for the input.

[@lmallard3788]

Smaller rim size trailer tires are rolling faster and often exceeding their limit, than the larger diameter tow vehicle tires running at 65 mph. My rule of thumb is that when I am towing my rv, I am going on an adventure and I want to go slow enuf so as to be able to enjoy the scenery.

[@KRTube75]

ST tires can have speed ratings other than 65 MPH. My Goodyear Endurance tires are N rated which is 87 MPH. I'd love to put LT tires on my camper but good luck finding a 14" diameter LT tire.

[@nnelgish]

Trailer sway is one of the biggest contributors in overheating. Make sure your equipment is correct.

[@genehart261]

You are dealing with a relatively light trailer. My experience with a fifth wheel is that LT tires with steel belted sidewalls are best. Bridgestone Duravis or Michelin XPS rib have both served me well. Goodyear Wrangler ST caused me the most grief.

[@beachbumnc2008]

Two things - All CAT Scales have a PAD just for the trailer axles. You don't have to unhitch to see if you are over the GAWR of the trailer but you do to get the GVW of the trailer. Also, you mentioned that you went from 55 psi on the Load C to 65 on the Load D but Load C are 50 psi. We went from Load D 'China Bombs' to Load E Endurance tires within months of buying our new trailer. It's nice to have the extra load capacity of the E Rated tires and we don't have to run them at 80 psi. Goodyear has a chart showing the load rating for the tires based on inflation pressure. We can run the Endurance E tires at 65 PSI and still have plenty of Load Capacity headroom and get more 'cushion' from the tires. We usually run them at 70 psi. We have a TST TPMS currently monitoring the Trailer Tires.

[@snow9566]

Thanks for this. This is just what I needed to know.

[@frankmitzen1162]

You should also weigh the trailer axles separately, to be able to check that the weight is evenly distributed between the two axles.

[@CharlesinGA]

If you have tandem axles on leaf springs, you really won't find much difference between axles, as the equalizer between axles does just what the name implies and pivots to allow more even loading of the axles. If you have torsion axles, such as an Airstream has, the trailer needs to run as level as possible, as the axles are totally separate (front to rear) and the axle toward the lower end of the trailer will be more heavily loaded than the one on the higher end.

[@bruceh3786]

I agree with you on the advantages of the ST tire over the LT. That was not as clear a few years ago but ST tires have improved a lot since then. The tires on both the trailer and truck should be inflated to manufacturers recommendation for the weight the tire is carrying, not to the max on the side wall. Over inflation may result in less tread contact on the ground that could impair handling and cause abnormal premature wear. Several years ago most all ST tires were speed rated to 65 mph. This is not the case with some of the new design premium ST tires. I believe the Carlisle Radial Trail HD is rated to 81 mph and the new Goodyear Endurance is rated at 87 mph. Even so, I would not tow that fast and would still stay at around 65 for safety reasons. You were wise to upgrade from a C to a D. I have a similar size trailer and the same Duramax truck in 4WD. The trailer originally had the same size C tire. I went even safer to an E rated tire with no regrets. It was slightly more expensive but tires are not a place to save money. I would also avoid going with less expensive off brand China tires. Three ST brands that seem to have a good rep are the Carlisle Radial Trail HD, the Goodyear Endurance and the Maxxis. An ST tire for the big 5th wheels is the Sailun. Many folks go with a high end LT tire for the big rigs but I favor the Sailun or the Endurance in the lighter big rigs. You recommended a tire pressure monitoring system in the video but did not say if you use one. I agree that it is an excellent idea and finally got off my duff and brought an EEZTIRE system from EEZRV Products last month at the Quartzsite big tent. My experience is limited, but so far so good. Looks like you have the BF Goodrich KO2 tire on your Duramax truck, upgraded one size. I am curious how many miles you have on them? We have the same generation 2007 Classic Duramax in the family and it only got about 24K of wear on the KO2. The weight kills them. They recently made changes to the rubber compound and now offer a mileage warranty. If yours has the warranty, then you have the new compound. The new version is not available in all sizes yet.

[@bruceh3786]

Bob .... What kind of truck do you have and which Michelin tire. My Duramax is the same as David's and Jenny's but with 4WD. The previous tires were stock size Michelin LTX M/S2. They had a warranty over 50K (either 60 or 70K) but were down to or near the wear bars at about 27K. Michelin ended up prorating them out for new tires. The tires were well maintained at the proper pressure, rotated and balanced regularly. Driving was easy. I was told the poor wear was due to the heavy truck with a heavy diesel engine, towing, driving in hot climates, and driving a lot on dirt back roads. They do well on lighter 1/2 trucks but not so well on the heavy diesel HD trucks.

[@bruceh3786]

Thanks for the additional information. That is great that you were able to get 80K mile with tires on a HD truck. The Michelin tire line in that style for my size is now called the Defender LTX M/S (50K) or A/T2 (60K) or Winter (40K). Their write-up for the A/T2 says 35% longer life on gravel so maybe it is back road driving that wore mine down so fast.

[@AlliChuckAdventures]

We’ve had great experience with Gladiator Trailer tires so far. Much cheaper than Goodyear.

[@danceswithbears2521]

Cheaper is better. Thanks.

[@curtzblues]

Thank you for a thoughtful and easy to understand video.

[@jeannegenevieveconstancewe6121]

Fantastic informative video Thank you!