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Old 08-27-2014, 01:51 PM   #11
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Interesting.
I just swapped my china bombs for Goodyear Marathon 'E' STs.
The load range is certainly most important, but I also consider the side loading the tire can put on the axle mounts, which can be severe when in tight corners.
The ST tire has softer sidewalls that will flex easier than LTs, so less stress on the axles and mounts.
On the heavier duty gooseneck trailers, this may not be an issue, but with the lighter built RV chassis???
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Old 08-27-2014, 02:16 PM   #12
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When I looked into this the tire folks say that trailer-specific tires are built to lessen sway compared to car/Lt tires.

Don' know.

I bought a boat (19' i/o) and it has car tires on it - car radials. LOTS of sidewall 'bulge' like you see on cars but NOT on trailers, even radial trailer tires. I can certainly induce sidewall 'flex' (think jello) by just pushing on the side of the boat.

i did haul it home, about 45 miles a mix of hiway and back roads (35-55mph) and didn't notice anything unusual - no sway, no bounce, no nothing.

As for pressure and ratings..check your rims- TT rims are cheap and often not rated for much more than the factory tires and pressures.
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Old 08-27-2014, 02:39 PM   #13
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Having both the e rated st and e rated lt on the shop floor there is an obvious difference between the 2. The st was several pounds lighter and the sidewall was much softer. The st just felt cheap. You could spend hours researching varying opinions on the internet. But most are just..well..opinions. Some tire manufacturers say lt's are great trailer tires while others(mostly those who make st tires) say no bueno. Who do you believe? Something I had difficulty finding was published negative findings by folks who have first hand experience. That might be because they are too proud to admit they were wrong or because problems are few or don't exist. Have a 400 mile trip this weekend and will be sure to report back.
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Old 08-27-2014, 03:54 PM   #14
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I'm doing about 600m trip starting tommorow and my "trail distress" are worrying me.
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Old 08-28-2014, 08:22 PM   #15
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Made it to our weekend destination. Some city, some highway, some curves. No noticeable change in handing. Tire temp as felt by my highly sensitive and calibrated palm were the same as the TV. I will say I was a little nervous because my last trip ended with carnage but I can see my confidence returning.
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Old 08-28-2014, 09:11 PM   #16
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I have used e load LT tires on my trailers for years. I got tired of the China bombs blowing. My new fiver came with a higher quality china bomb filled with nitrogen and laser aligned axles but they will he swapped out within 4-6 months. I usually use commercial grade Firestone Transforce HTs. Strong and dead reliable!

What most people don't know is that the trailer use only tire does not have the same strict DOT requirements as vehicle tires and the manufacturer can basically put whatever it wants for specs. If they were so good, why do they blow so much. I had a friend just get back from a 3500miles trip ands blew 3 ST tires.... He is OCD about pressures, ect but didn't make a difference. Also, an ST tire is rated to a 65mph max speed. Well, I like to go the speed limit so I'm not getting blown off the road from semis ect.
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Old 08-29-2014, 08:15 PM   #17
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The softer side walls on the ST tires would work to a degree to help absorb shock for the trailer. Do you have shocks on your trailer? Switching a TV from P tires to LT makes a noticeable difference in the ride depending on the tire pressure. Have you played with tire pressures at all?


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Old 08-29-2014, 08:27 PM   #18
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No shocks. Running 80 psi, same as the old tires. I do have the Equa-flex suspension which is suppose to make the trailer ride smooth.
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Old 08-31-2014, 12:01 PM   #19
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Gone to the "darkside" (lt tires)

We had Cooper LT tires on our horse trailer for years. When it became necessary we replaced with "trailer" tires. There was a difference in handling. If I'd have had the money I'd have gone back to the LT tires. Trailer tires felt like the wheels we're dragging and the trailer was heavier. And.... Can't complain about our nitrogen filled China bombs. Bought the trailer in the fall, trailer parked in driveway all winter on cement pad and tires we're not covered. Took off from Maryland, drove to Gulf shores Alabama and followed I-10 out to California. Stayed in North San Francisco for a week. Returned to Maryland via I-80. Docked back in Maryland 2 months after starting trip. No probs with tires at all. I do the driving and parking. DH sets up and breaks down. We both check all equipment - 4 eyes being better than two.


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Old 09-04-2014, 09:31 PM   #20
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Hmm, Has me thinking if I want to switch to LT tires. I bought a new to me 07 Shamrock and I know they are the original tires. Trailer is in extremely good shape and I don't think this trailer has anymore than a few k on it. (Not a spec of rust underneath, zero wear on the carpets and upholstery, one mattress still had factory plastic on it etc) I'm a fanatic about my trailer tires though, carry two spares and I know 6 year old tires are due to fail me, so they are def. being replaced before my cross country trip next spring. I have a small 16' aluminum lund and I went thru 3 tires this summer. At most, I did about 2500 miles of towing. Seems the China tires are getting cheaper and cheaper as time goes on.
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