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Old 08-28-2017, 04:09 PM   #1
captcolour
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Cracked Wheels

Have traveled about 3,500 miles so far with my Sailun S637 ST235/85R16 mounted to the HiSpec 16x6.5 wheels. Tows really great. My daughter was here today and noticed a crack on a wheel spoke. After further inspection, there are several pretty severe cracks on 2 wheels, and the other two have cracks starting at the edges. Didn't check the spare yet which is the same wheel/tire combo.

Wheels are rated for 110 psi and the weight rating required for the 2016 Alpine 3600RS. Reached out to Recstuff where the wheels were purchased back in May. Looking for a full refund plus the $100 it cost to mount and balance the tires. Don't want replacement wheels as I will worry about this happening again while towing.

Thought I was doing good replacing the China bombs with Sailuns and the proper size 16x6.5 wheels!
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Old 08-28-2017, 04:26 PM   #2
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Old 08-28-2017, 04:37 PM   #3
captcolour
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I had a hard time finding any wheels that were 6.5" wide.
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Old 08-28-2017, 06:08 PM   #4
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I know those are high spec wheels, but they're the same design and similar weight rating of the sendel T03. Sendel told me to replace the T03 with T11MB. They said the T03 was not strong enough for my Alpine. They compared it to an aluminum can. Enough flexing and eventually the spokes crack. I know you were looking for a 6.5" wheel, but Sailun says 6" is acceptable and Hartland is installing them on 6" wheels as well. I would look at the T11MB if I was you. I put them on mine and have no more worries.
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Old 08-29-2017, 08:21 AM   #5
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Glad you found it before there was an accident.


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Old 08-29-2017, 10:11 AM   #6
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Sendel told me not to put 110psi LR G my 6 lug T03, that they would crack. Assuming an Alpine has at least 7000# axles and 8 lug wheels, and stamped for LR G, that is surprising.
I will say that I found a lot of misleading info on eTrailer about what wheel was rated for 110. They seemed to have cleaned it up recently though.
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Old 08-29-2017, 10:14 AM   #7
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The T03 is only rated for 95 psi so LRF. I'm not sure how much different the HiSpec is.
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Old 08-29-2017, 11:31 AM   #8
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It's very important for you to send those pictures to NHTSA along with a description of the vehicle they were mounted on. You can protect all others using those wheels in similar conditions.

I'm surprised a Sailun spokesperson would recommend something that is contrary to a certified minimum standard. That's what the 6.5" rim width is once put on a tire with a DOT certification.

http://www.irv2.com/photopost/showfull.php?photo=29709
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Old 08-29-2017, 02:03 PM   #9
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Thinking out loud (I know, I know), I ave read on here how much heavier/stiffer the Sailun tires are. Could it be, since the sidewalls are so much stiffer, that the stress of backing/jack-knifing is being transmitted to the wheels instead of being absorbed by the flex in the tire? Just a thought.
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Old 08-29-2017, 02:24 PM   #10
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Cracked Wheels

Quote:
Originally Posted by jsmith948 View Post
Thinking out loud (I know, I know), I ave read on here how much heavier/stiffer the Sailun tires are. Could it be, since the sidewalls are so much stiffer, that the stress of backing/jack-knifing is being transmitted to the wheels instead of being absorbed by the flex in the tire? Just a thought.


No.

The sidewall may flex initially, but at some point (inch or two) the flex stops and you are at the same side drag.
If one tire gripped the ground better that would be different, however if a wheel fails because of that the wheel should be taken off the market.

Those tight turns on multi-axle trailers do put a lot of stress on the wheels for sure.

Hi-spec wheels are copies of Sendel wheels. I don't know if that matters, however when you copy something you generally haven't had to go through the R&D pains that the original designer did. In doing so important things can be missed. Or, the wheels are simply being overloaded either by exceeding their rating or the rating being too high to begin with.

I have 16" Sendel T03 wheels on my TT. I replaced the factory Keystone wheels (15") that were the exact same design (don't know original manufacturer). (I chose the T03 so the wheels should look the same as factory.) If I remember correctly, the 16" 6-lug Sendel T03 wheels have a 3,580 lbs rating... however with an 80 psi rating (or 95, not sure) I don't know how you would get tires with that rating at that psi. Since my TT is only 11,000 lbs I am way under the rating. Haven't seen any issues with my wheels, however I will watch closely.


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Old 08-29-2017, 04:22 PM   #11
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The HiSpecs S5 are rated for 110 psi. I chose these as they were available in a 6.5" width which is recommended by Sailun for the tires. I had originally ordered Sendel TR8's which showed available on-line, but weren't. Contacted Sendel directly to find another source. Didn't hear back so had to settle for the HiSpec S5. Two weeks after ordering the HiSpec, I did hear back from Sendel. This is what they told me:

"Thanks for your note. We’re always glad to help the best ways we can. The model TR8 is one that we’ve been clearing out over the last 8 months we have only about 10pcs left. It is being replaced by the model T11. The T11 has some unique testing that we’ve never done before on one of our trailer wheels. Trailer wheels are mandated to pass certain testing. The one that sets air pressure and load is called SAE-J1204 all of our trailer wheels exceed the numbers listed tested against this test. The T11 passed 3,960lbs and 110psi in this testing.
For the first time we also had a trailer wheel tested to a light truck wheel standard called SAE-J2530. This test has many of the same criteria but is more stringent for side impact and side loads that would occur in turning. We are exploring how this can make our products even better in the field for long term durability and if the consumer will see the advantages in the slightly more costs to achieve these certifications. In this testing our T11 passed 3,750lbs and 110psi.
For our website we list the lessor of the 2 loads. It is mandated that a wheel list the test and capacity marked on it. The T11 lists both SAE-J1204 and SAE-J2530 with the numbers I’ve told you."


bsmith, good choice on the T11's. I think I will be getting those now.
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Old 08-29-2017, 07:21 PM   #12
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I'm happy with them, they are a nice wheel. My only complaint is my TST flow through sensors don't fit into the valve stem area so I had to use valve stem extensions, but that was a minor set back.
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Old 08-29-2017, 08:11 PM   #13
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I'm with CWtheMan, that needs to be reported. There's no telling how little was done when the wheel was copied. No Positive Material Identification and no Finite Element Analysis. They just pooped one out that looked like the others.
Someone is going to get hurt doing this.
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Old 08-30-2017, 06:30 AM   #14
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Not to defend the HiSpec company, they are ultimately responsible, but this looks like a "business decision" (contract with a Chinese supplier) more than it does a "engineering decision" (design/build a product)...

I'd urge reporting this as well. No doubt there's at least one "cargo ship full" of these wheels floating around on trailers, in warehouses and distribution centers all over the USA.....
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Old 08-30-2017, 09:15 AM   #15
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Exactly John.
Any business is responsible for vetting their vendors. If you are buying products or services that can effect folks lives, you had better know all that can be known about what you are buying. Most of us have been there....show me your metallurgy reports (PMI), your welding procedures, your tolerances, etc. Then trot out their Quality Assurance folks to talk to your Quality process folks. Then shop audits, etc.
You can't just buy wheels from any Joe that knocks on the door trusting him to provide a quality product.
Well, maybe you can....
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Old 08-30-2017, 03:12 PM   #16
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Quote:
Originally Posted by gearhead View Post
Exactly John.
Any business is responsible for vetting their vendors. If you are buying products or services that can effect folks lives, you had better know all that can be known about what you are buying. Most of us have been there....show me your metallurgy reports (PMI), your welding procedures, your tolerances, etc. Then trot out their Quality Assurance folks to talk to your Quality process folks. Then shop audits, etc.
You can't just buy wheels from any Joe that knocks on the door trusting him to provide a quality product.
Well, maybe you can....
Wheels/rims are certified by SAE.
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Old 08-30-2017, 05:48 PM   #17
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I bet I could find a way around that.
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Old 08-30-2017, 06:29 PM   #18
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Quote:
Originally Posted by CWtheMan View Post
Wheels/rims are certified by SAE.
EVERY truck, trailer, refrigerator, extension cord and you can name pretty much any other piece of equipment is "certified and built to XXX" standard...

That does not mean that they all "meet" that standard, rather than they are "supposed to meet" that standard. If they all "actually never failed" then there'd be no recalls, no reason for the pictures that show cracked wheels that started this post.

Yes, there are far too many companies finding "ways around things".....

All the more reason to stick with a "known reputable brand" and hold their feet to the fire when things fail.
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Old 08-30-2017, 10:58 PM   #19
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This picture is of a tire off my truck. When the bubble developed I put the spare on and took the bubbled tire to a Goodyear dealer for a new one. They wouldn’t even give me an adjustment because they said I hit a curb with it. Of course I said show me the damage. Once dismounted they could not find any external or internal damage to indicate a curb strike which I had already told them, “it had not happened” because I’m the only driver of that truck and I never hit a curb with any of it’s tires.

When they dissected the tire they found a smallish piece trash in between the innerliner and sidewall that cause the high pressure one way leak into the sidewall. It stayed inflated until it was opened for inspection. I got a new tire installed and balanced at no cost to me. Some time later they informed me that they went back and checked the X-ray and sure enough it had been missed by the X-ray examiner.

People make mistakes. Should we condemn all of those tires in that batch for a single tire mistake. GY would have done just that if they could not have found the cause to deem it a single tire problem.

Lots of people that post about trailer tires are not willing to take the problem to the next level to find a factual cause. The tire forensic people don’t need much of the tire to come to conclusions as to the cause of catastrophic failures. Dr. John Daws is an expert in tire forensics. You can find a lot of his publications on the WWW.

People like to post pictures of “blow outs”. Funny thing about a lot of those pictures is melted polyester cords. They didn’t melt when the tire blew. They have to get pretty darn hot to melt, hmmmm, are the bells ringing. Maybe they had already rung causing failed tires to be trashed without anything but anecdotal complaints to follow.

http://www.irv2.com/photopost/showfull.php?photo=18103

This is getting way off topic and way to technical. I'll not post in this thread again.
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Old 08-31-2017, 04:46 AM   #20
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Hmmm. This has really got me thinkin now. Im in the market for some 15s for my Hideout (currently on the factory 14" steelies). Was looking at a few different style aluminum wheels from recstuff.
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