China Bomber strikes again

[Bobaloo]

Got to be a Castle Rock

[Larry0071]

Got to wonder.... Was that tire exposed to a chemical or fire?

[Gumpster808]

Originally Posted by Bobaloo

Got to be a Castle Rock

No that is a special rock climbing tire. Get better traction on those sidewalls than a normal one when needed between rocks 🤣🤣

Seriously though, that looks messed up.

[Larry0071]

Originally Posted by Gumpster808

No that is a special rock climbing tire. Get better traction on those sidewalls than a normal one when needed between rocks [emoji1787][emoji1787]

Seriously though, that looks messed up.

That's different than the rock climbing tires I use... Maybe I should swap....

[SC-RV]

Went with the G rated Hercules.
When replacing the tech showed me where tread separation was starting at two different locations on another tire. I always looked at tires before travel but not close enough to see what he pointed out to me in the tread area.

[Capt. Mike]

Originally Posted by Mike223

My 2 1/2 year old Castle Rocks are very dry rotted already. I just bought the used TT 3 weeks ago from a local dealer. I have no paper work on the tires. Are they under any type of warranty that would cover this for me?
Mike

No, unfortunately not, for two reasons. Tire warranties on trailer tires are typically 1 year at most, and dry-rot (typically from sitting in the sun) would not be covered, since they are not "manufacturing defects" or "road hazards".

[Airdale]

Originally Posted by Mike223

My 2 1/2 year old Castle Rocks are very dry rotted already. I just bought the used TT 3 weeks ago from a local dealer. I have no paper work on the tires. Are they under any type of warranty that would cover this for me?
Mike

Mike, LionsHead is the OEM provider for Castle Rock tires. They have a warranty claims procedure outlined in the reference below. It wont hurt to ask.

http://lionsheadtireandwheel.com/med...im-Form_V2.pdf

[Tireman9]

Originally Posted by SC-RV

Purchased 38FKOK Sandpiper in 2018. Did not change the Castlerock ST235/85r16 load range F tires.
18 months of trips, approximately 12,000 miles. Had blowout on last trip.
Weighed trailer fully loaded in August. Trailer weight at axles was 12,160 (total trailer weight 14,560)
Speed was 70mph (rated for 75)
Cold pressure was 93psi
TPMS was 103psi and 106F at time of blowout.
Checked tires before leaving on both sides and saw no signs of wear or damage.
Heard blow out and TPMS alarm right after.
Attachment 216329

Going to purchase all new tires. Looking but don’t know what to get. I wanted to go up to load range G tire and was thinking Goodyear Endurance. However looks like Endurance only goes to load range E. Saw another Goodyear tire on web site that said it was loadrange G but load @ 110psi was only about 100lbs higher then Endurance E. Did not make sense. Going to call Goodyear dealer tomorrow to inquire.

Saw Carlisle and Hercules tires? Any thoughts on these?

Tim

ST235/85R16 LRE are rated 3,640 @ 80 psi. LRF are rated for 95 psi and 3960# BUT only if your cold infl is 95.

RVIA recommends at least a 10% Reserve load. Your 12,160# scale reading means you need at least 3,040 capacity per tire but that assumes a perfect 50/50 load split between axles (not realistic) and also assumes a perfect 50/50 end to end load split (also not realistic.) 53/47 axle split and 53/47 end split is more realistic.


You need to also remember that the formul;a for ST tires is based on an assumption of 65 mph MAX speed. The 75 "speed" rating is really just a relative rating for heat resistance.

Glad you are using TPMS. Hot inflation pressure is not what you should be looking at only COLD.


GY Endurance is ST type their 110 psi G614 tire is an LT type. This is an important difference and you need to pay attention to the type tire and Load range not just the physical size.
The G614 might be a better choice assuming your wheels are rated for 110 psi.

[Tireman9]

Originally Posted by Gumpster808

No that is a special rock climbing tire. Get better traction on those sidewalls than a normal one when needed between rocks 🤣🤣

Seriously though, that looks messed up.

1. That better not be an ST type tires as they are not approved for passenger carryingvehicles.


2. Probably the tire has been run at VERY low inflation (below 10 psi) and the sidewall polyester cords have melted out. Would probably fail with sidewall flex in a few more miles.

[Airdale]

Originally Posted by Tireman9

ST235/85R16 LRE are rated 3,640 @ 80 psi. LRF are rated for 110 psi and 4,400# BUT only if your cold infl is 110. Your 93 psi drops your load capacity to below 3,900.


RVIA recommends at least a 10% Reserve load. Your 12,160# scale reading means you need at least 3,040 capacity per tire but that assumes a perfect 50/50 load split between axles (not realistic) and also assumes a perfect 50/50 end to end load split (also not realistic.) 53/47 axle split and 53/47 end split is more realistic.



You need to also remember that the formul;a for ST tires is based on an assumption of 65 mph MAX speed. The 75 "speed" rating is really just a relative rating for heat resistance. Your statement differs from the official definition for tire speed letters which states the letter is the tire manufacturer's limit for tire speed/load.



Glad you are using TPMS. Hot inflation pressure is not what you should be looking at only COLD.



GY Endurance is ST type their 110 psi G614 tire is an LT type. This is an important difference and you need to pay attention to the type tire and Load range not just the physical size.
The G614 might be a better choice assuming your wheels are rated for 110 psi.

There is an error in red.

[SC-RV]

The original tires were LRF. 3900 lbs at 95psi. Not sure why you referenced LRE. My cold pressure was 93 psi.
I understand that weight is not evenly distributed on the 4 tires but the 3,900 at 93psi should have been fine.

Rims are capable of 110 psi. Have upgraded to LRG with 4,400lbs at 110psi.

[Airdale]

Originally Posted by SC-RV

The original tires were LRF. 3900 lbs at 95psi. Let's get accurate here. they provided 3960# @ 95 PSI. Not sure why you referenced LRE. My cold pressure was 93 psi. At 93 PSI they provided 3926#
I understand that weight is not evenly distributed on the 4 tires but the 3,900 at 93psi should have been fine.

Rims are capable of 110 psi. Have upgraded to LRG with 4,400lbs at 110psi. That same sized tire in a LRG provides identical load capacities as the LRF at 95 or 93 PSI.

If it's specific information you want you're going to have to give specific information such as the GAWRs, GVWR, Designated Tire size and the vehicle manufacturer's recommended cold inflation pressures as depicted on the vehicle certification label.

Tires for RV trailers are selected in accordance with strict regulations that require them to provide a load capacity equal to the VEHICLE certified GAWRs...PERIOD.

Once a consumer takes control of a newly manufactured trailer from the dealer it's their sole responsibility to maintain that vehicle in a safe for the road condition. That includes weight and balance. If the consumer was not provide with an owner's manual the dealer is to blame for not offering one. Press the issue. When tailored to the individual vehicle it contains everything needed to know for it's safe operation.

[King15]

Originally Posted by SC-RV

Purchased 38FKOK Sandpiper in 2018. Did not change the Castlerock ST235/85r16 load range F tires.
18 months of trips, approximately 12,000 miles. Had blowout on last trip.
Weighed trailer fully loaded in August. Trailer weight at axles was 12,160 (total trailer weight 14,560)
Speed was 70mph (rated for 75)
Cold pressure was 93psi
TPMS was 103psi and 106F at time of blowout.
Checked tires before leaving on both sides and saw no signs of wear or damage.
Heard blow out and TPMS alarm right after.
Attachment 216329

Going to purchase all new tires. Looking but don’t know what to get. I wanted to go up to load range G tire and was thinking Goodyear Endurance. However looks like Endurance only goes to load range E. Saw another Goodyear tire on web site that said it was loadrange G but load @ 110psi was only about 100lbs higher then Endurance E. Did not make sense. Going to call Goodyear dealer tomorrow to inquire.

Saw Carlisle and Hercules tires? Any thoughts on these?

Tim

I replaced the junk F rated Constancy tires on my 39ft Phoenix with G rated Hercules ST tires. They are very heavy duty and look nearly identical to the Sailun. We only have about 1500 miles on them so far and they have been great.

[larryOliver]

I replaced my Castle Ro is after just 2,100 miles out of fear based on all of the issues everyone has had. I replaced them with the G rated Sailun tires and you can see the differences right off. Each Sailun tire just has more beef to it. In fact each tire weighs 20+ pounds more than the Castle Rocks. I am preparing to head out on my next trip tomorrow which is the first for the new Sailuns.