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whutfles
04-21-2015, 04:50 PM
I have a 2010 Montana Mountaineer with Goodyear ST23580R-16 10-ply tires. I replaced all 4 tires in 2012 after 1 threw the cap, then blew the tire 1 mile later and did $3800 damage to the trailer. I then lined the axles and installed a Tire Tracker Monitor system. The monitors saved me on our trip home from Texas last month with 2 valve stems leaking and one tire that lost all of it's air by the time I could slow after the alarm sounded after a cable broke in the cap of the tire and is protruding 1 inch out of the tire with a big bubble on the inside of the tire. So the Goodyears are comming off.

A local independent tire store wants to sell me Linglong 14 ply ST23585R-16 tires. 4010 lb weight, 110 lb pressure and I believe they are 75 mph rated. My trailer is only 13,850 GVW so probably only run 90 lbs pressure. My rims are good for 3750 lbs and 110 lbs.

Has anybody had any experience running Linglong tires? Dealer says he can sell me other tires but that this is his best tire. Says he's sold over 300 of these tires in the past 2 years and not one has come back. I want to believe him but appreciate any feecdback.

Thanks,
Bill Hutfles
2012 Dodge Ram 3500 DRW

jcurtis934
04-22-2015, 02:57 AM
Haven't heard of them, so can't provide any useful info to you. Besides, I am in the camp of no chinese tire is a good tire...maybe ten years from now. Personal decision to stick with chinese tires/st tires or jump to lt or commercial trailer tires. I felt better going with load range h tires/wheels. John

steelpony5555
04-22-2015, 03:14 AM
Isn't so much the Chinese part as it's the ST part...... ST tires no matter who makes them have no business on a trailer that heavy. They are a fine tire for anything below 9000 lbs but on a heavy 5th wheel it is just asking for problems. you are borderline for LT tires or just go with the G614's. They probably won't be much more then what that dealer is trying to sell you. I mean do you really want a tire called Linglong Dingdongs on a trailer that costs as much as yours?????? Invest now to avoid another $3800...if you had done it years ago you would not have paid to repair your trailer...

DQDick
04-22-2015, 03:48 AM
They apparently sell very good high performance tires, but as far as I can tell no one is reviewing their trailer tires.

Hooker
04-22-2015, 04:08 AM
quote:Originally posted by jcurtis934

...Haven't heard of them, so can't provide any useful info to you. Besides, I am in the camp of no chinese tire is a good tire...maybe ten years from now... John


Exactly.

1retired06
04-22-2015, 04:12 AM
If you have Goodyear ST tires, bet they are Marathons.

MikenAngie
04-22-2015, 04:56 AM
G614'a go on my Montana Friday morning..........

jlb27537
04-22-2015, 05:18 AM
We are on a camping trip with friends. They were looking at my tires. Did you put new tires on? Yes, 2 years ago. They look new. Nope, got about 12K miles on them. What kind are they? Bridgestone Duravis R250. Weight 59lbs each with a speed rating of 101mph. You got 12K miles on those? Yup. I got to look at those.

My '14 3150RL loaded for the winter weighs close to 14,500 lbs with 3,200-3,400 lbs on the pin.

I have yet to have to add air in 2 years of use. My TST 507 monitors show a 15 psi increase in 100 degree air. On a cool spring day lightly loaded will increase about 8-10psi.

No way am I running a China tire, I don't care what the dealer says.

whutfles
04-22-2015, 05:26 AM
Yes, my current tires are Marathons. As-far-as made in China v.s. Mexico v.s. US, I trusted Goodyear and Montana that the Goodyear tires it was equipped with at manufacture were intended for it and the best fit. That's why I replaced them with the same tire when one blew at 2 yrs old and the others started to wear unevenly. Now after aligning the axles and 2 yrs later they are failing again I'm not trusting Goodyear and Montana. I'm reading plenty of blogs about G614's throwing the cap and their solution is to change to an H rated LT 215/75R-17.5 4800 lb 125 psi tire which requires new rims. When the higher rated tire blows or throws a cap, it's probably going to do more damage than the lower rated one. If I hadn't been running monitors on my valve stems, I would have thought 3 tires failed on our trip home this year instead of 2 valve stem problems and 1 bad tire. My camper sits under a roof thru the summer with slight use, then we drive 1100 miles in Dec and return 1100 miles in Apr. We used to have a Starcraft Folddown - 2000 lb GVW small trailer that would sit all year until June then we'd take it on a 3-wk vacation as far as we could go. We would always throw a tire cap or 2 in the first 600 miles. I'm thinking these tires can't take the sittin and form a flat spot that eventually gives way to speed. And I don't drive over 65 mph. My experience says get them off and replaced every 2 years. And if I'm going to do that, why replace them with more expensive tires and rims from a company (Goodyear) that hasn't served me well to date?

waynemoore
04-22-2015, 05:38 AM
I agree with jib27537 about the Bridgstones. I put them on 3 days after I took delivery on my rig a bit less then a year ago. I have about 3000 miles on them. This fall we have a 8000 plus mile trip planed and will not have to think about tire problems. That said I very seldom drive over 65 mph and do keep an eye on the tps system. For me tires and brakes are the most important items. When one has as much money tyed up in these rigs as we do don't be cheep with the tires and brakes. JMHO

BB_TX
04-22-2015, 05:43 AM
My 2007 and a friend's 2008 both came with Mission (Chinese) tires. With all the bad reports on Missions I replaced them with Michelin XPS Ribs after one year. 7 years and about 19,000 miles later they still look new, never a low tire, and lose about 2-3 lbs air per year. Air in spring and good til next year. Thinking of replacing with same only because of age.

Friend ran his Missions for 2 years with no problem, but decided to replace because of reputation. Bought Goodyear Marathons thinking since they were Goodyear they must be US made. Wrong. He was not happy when I showed him "Made in China" on the sidewall. He had 3 blowouts in 2 years.

I would certainly not skimp on tires due to increased possibility of damages, not to mention inconvenience of being down on the side of the highway.

whutfles
04-22-2015, 06:00 AM
Yes, my current tires are Marathons. As-far-as made in China v.s. Mexico v.s. US, I trusted Goodyear and Montana that the Goodyear tires it was equipped with at manufacture were intended for it and the best fit. That's why I replaced them with the same tire when one blew at 2 yrs old and the others started to wear unevenly. Now after aligning the axles and 2 yrs later they are failing again I'm not trusting Goodyear and Montana. I'm reading plenty of blogs about G614's throwing the cap and their solution is to change to an H rated LT 215/75R-17.5 4800 lb 125 psi tire which requires new rims. When the higher rated tire blows or throws a cap, it's probably going to do more damage than the lower rated one. If I hadn't been running monitors on my valve stems, I would have thought 3 tires failed on our trip home this year instead of 2 valve stem problems and 1 bad tire. My camper sits under a roof thru the summer with slight use, then we drive 1100 miles in Dec and return 1100 miles in Apr. We used to have a Starcraft Folddown - 2000 lb GVW small trailer that would sit all year until June then we'd take it on a 3-wk vacation as far as we could go. We would always throw a tire cap or 2 in the first 600 miles. I'm thinking these tires can't take the sittin and form a flat spot that eventually gives way to speed. And I don't drive over 65 mph. My experience says get them off and replaced every 2 years. And if I'm going to do that, why replace them with more expensive tires and rims from a company (Goodyear) that hasn't served me well to date?

Golferdave
04-22-2015, 04:49 PM
Hi guys: I was a believer in Goodyear. Why would Keystone put bad tires on our rig ? We have a 2013 Montana 3800RE with Goodyear Marathon (ChinaBomb) ST235/80R16. Last, November, on our way South to AZ I notice a bubble on the side of a tire. Replaced it before trouble. Today, April 22, headed North to Canada on Highway 95, South of Hawthorne we had a blowout, right back tire. AAA came and put on spare. 90 miles later, now without a spare, another blowout, this time left back tire. Same Tow company, $ 640 bill for new tire, and mounting service and mileage.
All my tire only have less than 15,000 miles. 2 tires today were both tread separation. Luckily no damage just a hell of a lot of expense and anxiety. Tomorrow looking for new tires but there is little choice in Hawthorne, Nevada. Why did I not listen to Montana owners and replace with G614s earlier. DUMB.

twindman
04-22-2015, 06:54 PM
My old 2980 Montana (2006) weighed in at around 11,800. I hauled it around 45,000 miles on Michlein tires. The heaviest Mountaineer from 2010 was only 500 lb heavier than mine, so I would think LT tires would work for you. Also, on some downhills on the interstates, you creep up to 70-75 pretty easily, so the higher speeds seem good to me.

whutfles
04-22-2015, 08:03 PM
GolferDave - Hope you find tires. The sad thing is you're probably going to end up with 2 tires of a brand you don't want. Too bad you aren't closer, I'd give you 4 of mine.

I hear what you guys are saying about the Bridgstone R250's but I just think their weight rating is too low - 3042 lbs v.s. 3420 on the Marithons I currently have.

The G614's would be a good fit for me as I could use my existing rims. Just wish I hadn't read about thrown caps on them like has happened on mine. Has anybody switched to the G114's - H rated tire 4805 lbs @ 125 psi 75mph speed rated, 215/75R 17.5? The tires are only about $75 more than the G614's. The rims would be the expense. Is this overkill? Not sure of the additional weight of this tire and rim. As-long-as it fits, and I think it would, is there a point where a tire and rim rated this much higher would be a miss-match on my rig? I'm thinking if I switched to G614's and 2 yrs later had trouble with them also, then I'd be spending again, whereas the heavy G114's are just slightly more now. I'm thinking 2 years down the road I'm probably going to have trouble with whatever I buy.

The one issue I will have to address if I change to a heavier tire is my spare tire hanger. I noticed the other day while removing my spare that the thin piece of angle iron that the cable device that the spare hangs from is bent down about 2 inches. The 2 pieces of 1" angle iron going from frame to frame even have a downward sway to them. Probably going to remove the entire spare hanger and replace with heavier angle iron and then remount the cable device. That will add additional weight. I don't know why anyone would ever trade in an RV after they get finished replacing all of the parts that should have been built heavier.

Thanks for your input sofar.

Bill Hutfles

JandC
04-23-2015, 02:30 AM
Bill, you keep going back to reading about "thrown caps on G614's" and thinking you will be no better off. There are several folks on other forums that tried Goodyear G614 tires 9 or 10 years ago and had some issues with them, I agree. But G614's have been really good quality for several years and many on this forum run them without issues.

As a traveling full timer I have had G614's on two Montana models and never lost air and never had a tire issue.

jlb27537
04-23-2015, 03:16 AM
Bill, You need to take into consideration a LT tire (Light Truck) and a ST tire (Special Trailer) are tested differently.

A R250 LT tire has a reserve rating and is speed rated for it's load @ 101 mph.

A Marathon ST tire has no reserve rating and is speed limited to 65 mph.

Apples vs oranges.

Weigh your rig, get the axle weights, and then decide. If your loaded axle weights are 12K or less a QUALITY LT tire will work. Not some cheep LT from somewhere.

A R250 (LT) (101mph) and a G614 (ST) (75mph) both weigh 59lbs. I doubt your Mountaineer needs a G rated tire.

Jim

Tom S.
04-23-2015, 03:48 AM
quote:Originally posted by twindman

My old 2980 Montana (2006) weighed in at around 11,800. I hauled it around 45,000 miles on Michlein tires. The heaviest Mountaineer from 2010 was only 500 lb heavier than mine, so I would think LT tires would work for you. Also, on some downhills on the interstates, you creep up to 70-75 pretty easily, so the higher speeds seem good to me.


Without knowing the weight at each axle, this is dangerous thinking. While the whole unit may be within the rating of LT tires, one or more axles could be considerably under the rating while one is considerably over. Our unit is living proof of this.

whutfles
04-23-2015, 03:56 AM
GolferDave - Hope you find tires. The sad thing is you're probably going to end up with 2 tires of a brand you don't want. Too bad you aren't closer, I'd give you 4 of mine.

I hear what you guys are saying about the Bridgstone R250's but I just think their weight rating is too low - 3042 lbs v.s. 3420 on the Marithons I currently have.

The G614's would be a good fit for me as I could use my existing rims. Just wish I hadn't read about thrown caps on them like has happened on mine. Has anybody switched to the G114's - H rated tire 4805 lbs @ 125 psi 75mph speed rated, 215/75R 17.5? The tires are only about $75 more than the G614's. The rims would be the expense. Is this overkill? Not sure of the additional weight of this tire and rim. As-long-as it fits, and I think it would, is there a point where a tire and rim rated this much higher would be a miss-match on my rig? I'm thinking if I switched to G614's and 2 yrs later had trouble with them also, then I'd be spending again, whereas the heavy G114's are just slightly more now. I'm thinking 2 years down the road I'm probably going to have trouble with whatever I buy.

The one issue I will have to address if I change to a heavier tire is my spare tire hanger. I noticed the other day while removing my spare that the thin piece of angle iron that the cable device that the spare hangs from is bent down about 2 inches. The 2 pieces of 1" angle iron going from frame to frame even have a downward sway to them. Probably going to remove the entire spare hanger and replace with heavier angle iron and then remount the cable device. That will add additional weight. I don't know why anyone would ever trade in an RV after they get finished replacing all of the parts that should have been built heavier.

Thanks for your input sofar.

Bill Hutfles

whutfles
04-23-2015, 05:15 AM
JIB-You referred to a G614 as an ST tire? I've read an awful lot of discussion about whether it's an ST or LTand trying to get Goodyear to reply. Yet a lot of sites list it as an LT.

Since I had the problems returning this year, I weighed it at a small-town grain elevator in Nebraska before we got home and before unloading anything with 3/4 of a tank of fuel similar to when we had problems..
Truck and RV Pin - 12,600 lbs
Front Truck - 5250 lbs
Rear Truck - 7350 lbs - (calculated)
Truck and RV - 23,400 lbs
Both RV axles - 10,800 lbs
Rear RV axle - 6350 lbs
Front RV axle - 4450 lbs (calculated)
Truck without RV - 9200 (weighed last year empty without hitch)
Truck contents, extra passenger and RV hitch - 425 lbs (estimated)
Total Truck without RV - 9625 lbs
RV Pin weight - 2975 lbs (calculated)
Total RV weight (pin-calculated plus rear axles weighed) - 13,775 lbs

The scale was a 100 year old Fairbanks Morse which the old man was pretty proud of as it had just passed State inspection. I had weighed this camper with my previous Chevy truck 2 years ago when I was having tire problems at Flying J truck stop and they could not weigh an individual axle if it wasn't at least 6 feet on the scale, so I couldn't drop one axle off and have the other axle just on the scale. I told the old man at the elevator of this and he said drop one off and I'll weigh the other. So I don't know how accurate his rear axle weight is. And my trailer springs have the equalizer Trail-air shock thing connecting the 2 leafs so don't know how this transfers weight to the rear axle when the front drops off and maybe down off the scale. Although we like to run 1/3 to 1/2 tank (30-40 gal) of fresh water for flushing, etc., as we go down the road. It's hard to measure 1/2 tank since the guages are 1/3, 2/3, full instead of 1/4 1/2 etc. I have a bolt-on receiver hitch on the rear bumper which has a bike rack insert with 2 bicycles and a 10" PVC bolted to the rear bumper which contains my sewer hose. Also, when we switched to the 2012 Dodge 3500, Dodge made the bed sides about 1 3/4" taller than previous models so I had a Pin-box clearance issue. I went to the Montana dealer where I purchased it and he did not have a fix but suggested I drop the pin box to the next-last highest hole which raised the front a couple of inches. I now have plenty of clearance, looks level but is a couple of inches high in the front.

If this isn't airing your dirty laundry, I don't know what is?

Bill Hutfles

BB_TX
04-23-2015, 05:35 AM
The Goodyear web site list the tire as G614 RST. I think someone posted here one time what RST meant in Goodyear speak. But the web site also list the G614 RST tire size as LT235/85R16 G which would seem to indicate it is an LT tire.

Tom S.
04-23-2015, 07:14 AM
The G14 is a truck tire. You can also find some "F" rated truck tires if you look hard enough. Most people jumped on the "G"'s because they provide a wide margin of safety and they are carried nationally by a well known name in the business.

Golferdave
04-23-2015, 02:11 PM
Guys: ( see previous post 22 April 2015 ) Just replaced ALL my Goodyear Marathons with Firestone LT235/85R16 / 10 transforce AT.
No more Goodyear for this cowboy. Should have listed to the forum.
Thanks all. Happy trails.

DonandBonnie
04-23-2015, 02:34 PM
We had our truck and trailer weighed by individual tire at the MOC Rally last Fall. Part of the matrix that you receive after the weighing gives a recommended air pressure that you should carry in each tire based on your weight. If your tires aren't capable of the recommended pressures, it would be for your safety to buy different tires. We also swear by our TST that shows tire temperatures in addition to pressure. A tire that is running significantly hotter than the others is a candidate for a blowout.

jlb27537
04-24-2015, 03:39 AM
Yes, the Goodyear sites list the G614 as a truck tire, but all the sites list it for trailer application only.

I believe the GVWR plates on our vehicles (cars/trucks) list both the size and speed ratings of the tires our vehicles came equipped with.

Back in the '90's when Toyota came out with the Supra twin turbo, it was speed limited @ 154mph. That is when the computer shut off the fuel. Why, that was the speed rating of the OEM tires.

To put a G614 on a pick-up truck with a speed rating of 101mph I believe is illegal. I know when I replaced my '11 Honda CRV tires @ Sam's they looked up the car's speed rating in their book before they would install my new Michelins I bought from them.

Your thoughts may vary, but a G614 is a trailer tire, I don't care what they call it.

Jim

BB_TX
04-24-2015, 03:57 AM
Here is the Goodyear site (http://www.goodyeartrucktires.com/tires/details.aspx?prodline=160007) for the G614 tire. Note that it says G614 RST Even Wear in Demanding Trailer Applications

whutfles
04-24-2015, 11:09 AM
So, a Goodyear G114 can't be mounted on a truck either because of it's 75 mph speed rating even though it has a considerably higher weight rating. But a 75 mph rating and a 4805 weight capacity makes me feel a lot more comfortable than the 3400-3700 E and G rated tires.

I'm really considering changing to the 215/75R 17.5 Goodyear G114's and new rims. Still working on that deal. Then I'm going to look into finding someone around here that can install more blocking between my axle and leaf springs on the camper to make it sit as level as possible. I didn't have any tire problems other than uneven wear till I changed to the Dodge truck which made the front of the RV sit higher. Although the timming of that was when the original tires were 2 years old. And now my second set is having trouble at 2 years. So there's either something magical about 2 years or maybe I'll fix my problems with these changes.

Thanks for all your input and I'll keep you posted.

Bill Hutfles

MikenAngie
04-24-2015, 03:02 PM
G614's went on our baby today..........peaceful driving now.

whutfles
04-27-2015, 06:04 PM
Update: Still dealing on my new rims and tires. My Goodyear dealer has adjusted my tire with the protruding cable, if I get my new tires from him.

The first source for my new tires suggested I could use my ST235/80R-16 Load Range E spare with the new G114 Load Range H, so that I would only have to buy 4 new tires and rims.

I finally found the Dexter Axle stamp on my axles. It wasn't 18" from the passenger side wheel in the back of the axle like my Dexter Manual said. I couldn't find it in the daylight, but in the evening near dark, I found it just to the right of center at the back of the axle. It was actually on both axles. I called Dexter today and they said I have 6000 lb axles with 1/2" studs on the hubs. They suggested if I needed 9/16" studs for the new rims that I shouldn't press out the old studs and press in new but to just order new hubs with the 9/16" studs. My rim source can furnish rims with 1/2 or 9/16 hub nuts. And if I changed to 9/16 studs, I don't think I would be able to use my current rim as a spare. Not sure though if my old rims would fit over a 9/16 stud. They also said I would not have any bearing problems if I switched to the G114 rims.

Dexter also said there was no blocking available to raise my camper to make it level. They said the only blocking kits available was for under slung springs, and mine are already on top with the mounting block already welded to the axle by Dexter.

So I decided today to visit my RV Dealer and do my du-deligence and check out what new RV's they were offering to see if anyone was making a comperable RV to ours - similar options, GVW, with heavier axles and heavier weight rated tires. My pinbox rating is 15,600 I think. My GVW is 14,185. We'd walk up to a camper and I'd see the pinbox rating - 19,000. I looked at the weight tag - 18,000 GVW, equipped with 18 cu ft fridge or residential fridge option, load leveling system, kng size bed, huge closet in front, 2 big slides in back and a bedroom slide, 2 air conditioners. I crawled underneath to look at the tires - ST235/80R-16 Load Range E, made in China. I went back to the weight tag to see the GAWR Axle Rating - 6000 lbs. (Same tires and axle rating as mine). So if I traded for this newer camper, I'd be adding 4,000 lbs to the same axles and tires that I'm having trouble with and trying to upgrade. Looked at 4-6 new campers, 2 different RV Manufacturers, all in the same weight range and with the same size tires. Salesman did offer to price me a new one with rims and tires exchanged with a local tire dealer. Going to continue to upgrade my old RV.

Will keep you posted.

Bill Hutfles

mhs4771
04-28-2015, 03:07 AM
Wonder how they get away with 6K axles on an 18K GVWR unit. That means the pin with have to be well over 6K that would be over many of the 1 Ton Duallies.

whutfles
04-28-2015, 04:37 AM
I only saw the hitch weight on one which was 2770. But there was a lot of kitchen storage with the pantrys.. The garages are huge pass thru, no smaller than mine, which is great. But the huge closet with a place on each side for washer and dryer-(which if you don't have is shelved for great storage) just has the potential for a lot of weight over the pin.

I read in my Dexter manual that the GAWR axle rating is based on the max weight rating of the axle, rim and tire (the lesser of any of those components). When I spoke with Dexter I asked them a couple of times if they were sure my axles were 6000 lb and not 7000, and he wouldn't budge.

I did bring the brochure of one of these new RV's home and it says the GVWR is 16000 lbs, dry weight 12,650, hitch weight 2600 and axle rating 7000 lbs (ea). It only had ST235/80R-16 E rated tires on it.

My axle source responded that the same 17.5" rim fits over the 1/2" and 9/16" hub studs.

Bil Hutfles

DQDick
04-28-2015, 04:59 AM
We took the Moryde special at a national rally and went to IS. With IS I no longer have axles to worry about and they adjusted the IS to make the rig ride level with the truck and even changed the hitch and the pin box to work better since they could adjust the rear height also.

whutfles
04-28-2015, 05:57 AM
As far as the pin weight being over 6K. I have read that pin weight can be 15-20% of the GVW. So on an 18,000 lb camper, with 20% pin weight, you'd have 14400 on the axles and 3600 on the pin. 14400 divided by 4 camper tires is 3600 per tire. My Goodyear Marathons are only rated at 3420 X 4 = 13,680 lbs. And that means 720 lbs additional on the pin or 4320 (24%) on the pin. And yes, that's too much for my 3500 dulley. But to the manufacturer's credit, they did raise the pin box to 19,000.

When I looked at these new campers yesterday, all wheels had slides over them. I did see ST235/80R-16 E on all of the campers and I could only read the 80 psi on 2 tires. But I could not see the LBS at 80 psi which was in fine print which was too much for these bifocals and I didn't have a flashlight.

Bill Hutfles

Arcamper
04-28-2015, 10:33 AM
My new 3100 had Goodyear 614's put on as a factory option. My sticker on the trailer shows LT's not ST's and no where on the tire does it say for trailer service only.

mhs4771
04-28-2015, 01:35 PM
What I was refering to was with only 6K axles (12K for the two) to be within the axle ratings you would have to put the balance on the Pin, thus 12K on the axles and 6K on the pin would give you a total of 18K.

whutfles
04-28-2015, 03:16 PM
Yea, that doesn't add up. It was the first RV we looked at and I brought their brochure home. I saw GAWR 6000 lbs because I pointed out to the Salesman that it was the same as mine. Maybe that GVWR was 16,000 not 18,000, All of the RV's in the brouchure I brought home have a 7,000 GAWR and GVWR 16,000. I'll get back there in a couple of weeks and I'll take good notes.

Bill Hutfles

mhs4771
04-28-2015, 03:24 PM
Even at 16K GVWR on 6K axles would be on the risky side in my opinion.

jlb27537
04-28-2015, 03:24 PM
quote:Originally posted by Arcamper

My new 3100 had Goodyear 614's put on as a factory option. My sticker on the trailer shows LT's not ST's and no where on the tire does it say for trailer service only.


Your G614 tires are "designed" for TRAILER SERVICE ONLY. If you think they are truck tires, put them on your truck and head for west Texas where the speed limit is 85mph. Get back to me.

Jim

jlb27537
04-28-2015, 03:33 PM
Most, if not all, rigs with Marathons, are on 7K axles that are de-rated to 6,750lbs and that satisfies the federal requirements.

That will allow a GVWR of 16K+ and still be legal. But would you want to pull a 16K rig on Marathons? While legal, and with-in the tire limits, Nope for me.

Jim

rohrmann
04-28-2015, 03:47 PM
http://www.goodyearrvtires.com/tire-selector.aspx

They are trailer tires ONLY, but are rated LT, which gives them their 75 MPH speed rating. They do not have a traction tread that you would see on a car or truck tire, so would be very dangerous on anything other than trailers.

Tom S.
04-29-2015, 04:30 AM
quote:Originally posted by rohrmann

http://www.goodyearrvtires.com/tire-selector.aspx

They are trailer tires ONLY, but are rated LT, which gives them their 75 MPH speed rating. They do not have a traction tread that you would see on a car or truck tire, so would be very dangerous on anything other than trailers.


Good link!

DQDick
04-29-2015, 04:35 AM
If you just look at the tread pattern, or lack there of, a reasonable person wouldn't even think of putting them on a truck. However, when you look at some of the tread on tires I've seen on the road in West Texas or Arizona, maybe a 614 wouldn't be a bad option;)[}:)][:p]

whutfles
04-30-2015, 07:17 AM
http://www.trailertiresandwheels.com/17.5-radial-tires
http://www.Trailertiresandwheels.com/17.5x6.75-8-lug-series-03-hi-spec-aluminum-wheel

UPDATE; I placed the order today for 4 tires and 4 rims 215/75R-17.5. Should be here Mon or Tue. Have to drive 20 miles to Fedex terminal. Just in time for a short trip in mid May. Goodyear air pressure chart says use 95 psi if loaded to around 3950 lbs. When I placed the order they recommended no less than 110 lbs based on their experience. They said I would defeat the purpose of running this tire with less than 110 lbs. The link to the tires and rims is pasted above. You have to page down on the tire link to the G114's.

Bill Hutfles

whutfles
05-06-2015, 09:35 AM
UPDATE: Picked up tires/rims at FedEx yesterday shrink-wrapped on a pallet. Everything arrived OK. Tires were aired 125-130 lbs. Date codes on 3 tires were 8th week of 2015 and one was 5th week of 2015. 90 lb tires are considerably heavier than 60 lb tires/rims. The tread on the tires and the heft and finish of the rims is very impressivbe. Included instruction sheet emphasized torqueing lug nuts to 100 ft lbs on 1/2" studs, 120 ft lbs on 9/16 studs and on the other side of the sheet it had written "Torque to 150 ft lbs" with "17.5 H.D." circled. This was a little confusing so I called TrailerTiresandWheels and he said the 150 ft lbs was for 5/8ths. lug studs. He said if I was torqueing to 120 ft lbs that I probably had 9/16" studs. So I was a little worried as I went to the camper. I removed an old lug nut and the new one fit. Removed an old wheel and the new wheel fit. Looked like I didn't have as much exposed lug nut with the new wheel on so I removed a lug nut from an old wheel on the other axle, inserted a screw driver and measured 3/4" exposed stud. It was the same on the new wheel. The new wheel is a little thicker so the exposed stud appears shorter but it's because of the recess. The lug nuts do require a different size socket than my old nuts. I think the new ones were 7/8".

The center hub caps were identical in width and fit to my old ones except the new ones have a knockout in the center if you want to run with the knockout removed so you can access your grease zerk on the hub. I left the knockouts in and they do fit over the hub. In fact, my old hub covers fit in the new wheels and v.v.

I removed a little air down to 115 lbs. May even go down to 110 lbs.

I've included a couple pictures of the new wheels on the camper and the 4 new tires setting on the truck. If the link allows you to scroll thru the pictures, there are 4-5 pics of the old GY Marathon with the exposed cable protruding from the tread and the Montana spoked rim that I replaced. The other old camper door pics are from a previous RV unrelated to this. Will take it out in a few weeks and see how it tows. And when I get it out of storage will take a pic of the truck and RV with the new wheels. So far, am pleased with the replacement rims and tires and ready for some good trips. Thanks to all who helped me with my decision.

http://s145.photobucket.com/user/wbje1313/library/Camper

Bill Hutfles

whutfles
05-06-2015, 09:46 AM
UPDATE: I put the 4 old tires and rims in storage. Will probably try to sell the tires. If I eventually traded for a new RV, I would swap my new 215/75R-17.5 rims and G114 tires for whatever was on the new RV. The only reason I can think of holding onto these old tires and rims is if I was to get rid of this RV before I got a new one and then I would just swap the tires and rims and keep the new ones. Can anyone think of any reason to keep these old rims?

Also, what's best for the old tires in storage - reduce them to some air, no air, 50 lbs, what do you think? I'm thinking some air is better to keep them from loosing their seal.

Bill Hutfles

CalandLinda
05-08-2015, 05:15 AM
There has been a lot of talk in this thread about axle sizes.

The axle manufacturerís certification tag on the axle may not be the trailerís official axle load capacity. All RV trailer manufacturers have the authority to change the axle manufacturers load capacity to something less than their tag reflects. Itís all part of the trailer certification process.

In the reference below you will find a Keystone trailer certification label and tire and load information label. Note that the 7000# axles have been de-rated to 6750#. Keystone must do that when using any of the ST235/80R16E tires as OEM. So if you have a trailer with GAWR 7000# on itís certification label and OEM ST235/80R16E tires, Keystone was required to inform you in writing which ST235/80R16E tires they used as OEM (by load capacity). If they did not do that you should inform them of the error. ST235/80R16E tires rated at 3420# (Goodyear, Maxxis etc..) do not qualify for fitment on 7000# axles and are considered a safety violation by NHTSA.

http://www.irv2.com/photopost/showfull.php?photo=22027

Cal

whutfles
05-08-2015, 01:27 PM
Well, my Marathons were rated at 3420 lbs which would be 6840 lbs per axle, with only 6000 lb axles so something else must be the weak link like 1/2" hub studs or the 15,500 lb max pin box, or the frame or something. But I'm not trying to increase my load carrying capacity. I'm just trying to stop the tires from failing.

Bill Hutfles

PSFORD99
05-09-2015, 05:30 PM
quote:Originally posted by whutfles

Well, my Marathons were rated at 3420 lbs which would be 6840 lbs per axle, with only 6000 lb axles so something else must be the weak link like 1/2" hub studs or the 15,500 lb max pin box, or the frame or something. But I'm not trying to increase my load carrying capacity. I'm just trying to stop the tires from failing.

Bill Hutfles




Then you should of went with the Sailun S637. can't believe the blind eye this forum has for the Sailun tires. Didn't read all of your thread, but not one mention of Sailun. I'm surprised as knowledgeable as some seem to be ,the lack of knowledge about tires. Your fifth wheel with the 17.5 is total overkill .

whutfles
05-10-2015, 03:53 AM
The Saulin S637 is rated the same as the Linglong tire a local tire dealer said he had been having good luck with and wanted to sell me at a very reasonable price. That's how I started this thread asking for any feedback on the Linglong's. The common reply I got was "Made in China" like my current GY Marathons was trouble. And my experience has been that for 2 years they perform well, then they give out. Others had trouble when they were new. You're the first to support the China label. So maybe overkill, but made in USA, and the fact that the profile of the GY G114's was just a little smaller in dia and width than my current ST/235-80R16's made it an easy decision where I didn't have to worry about clearance issues.

Bill Hutfles

PSFORD99
05-10-2015, 04:57 PM
quote:Originally posted by whutfles

The Saulin S637 is rated the same as the Linglong tire a local tire dealer said he had been having good luck with and wanted to sell me at a very reasonable price. That's how I started this thread asking for any feedback on the Linglong's. The common reply I got was "Made in China" like my current GY Marathons was trouble. And my experience has been that for 2 years they perform well, then they give out. Others had trouble when they were new. You're the first to support the China label. So maybe overkill, but made in USA, and the fact that the profile of the GY G114's was just a little smaller in dia and width than my current ST/235-80R16's made it an easy decision where I didn't have to worry about clearance issues.

Bill Hutfles



Clearance issues ????

Here is the deal with Sailun tires, that some don't understand. Yes the Sailun tire is made in china, BUT they meet the ISO certification of TS16949 standards that a company has to meet to produce a quality recognized product, and to compete globally.

Sailun is getting better reviews then Goodyear has ever had. I want a quality tire the same as anyone, but I am not going to let a company gouge me for a product they have to charge outrageous prices to cover damage claims. I do wish Sailun was a US product, but we buy many items not produced in the US . Its unfortunate you brought up" I support the china label", when knowingly or otherwise we do it quite often.

whutfles
06-01-2015, 07:03 PM
Took it out for a 400 mile test last week with the new G114's. Torqued the lugs at 25, 50 and 100 miles. Finally stayed tight. I ran 110 psi It seemed like a smoother ride with less bumps. But when I did feel the bumps like on those concrete joints, they were a little more intense. It was raining a lot so didn't get a picture of the unit, but will get that on here the next time out.

Like the tires so far.

Bill