โMay-07-2018 09:03 PM
โMay-14-2018 08:01 AM
jaycocamprs wrote:
We have the R250's in the LT235/85R16. They have most definitely been run below 45 degrees, even a few times approaching 20 degrees. I never knew to worry about it, and havenโt seen any ill effect. We have about 9000# on 2 6000# axles with about 2800# on the pin, just under 12000# total. So the load is on average just under 75% of max.
The prior set of tires were BFG Commercial TA's. They were bought in August of 09 when I upgraded our last trailer from 15โ ST tires to 16โ LT tires. 2 Years later we bought the Mountaineer and I had the tires switched. In early 2013 I saw a bulge in 1 tire and replaced all 4 with the Bridgestone R250's.
Did you remount the tires on the same side of the trailer, so the direction of rotation was the same?
โMay-12-2018 01:46 PM
โMay-11-2018 11:10 AM
JIMNLIN wrote:
The Bridgestone R-238 I saw on their websites says they come in 17.5" and 19.5" sizes. IMO too much tire for a 5.2k 6 lug axle.
โMay-11-2018 08:10 AM
โMay-09-2018 04:42 PM
โMay-09-2018 04:23 PM
BenK wrote:
IMHO...always wonder about ST trailer tires and even higher class LT tires on trailers that are close to published axle limits/ratings
snip..
First they are normally aired up to their max ALL the time *AND* most are at max loading (at limits/ratings)
They have a less compliant suspension, generally, and no shocks, etc, etc. So they must 'take it' while the TV has a more compliant suspension (ride quality) that takes much off of its tires when striking something going 65MPH. Some folks do improve their trailer suspension, but a rarity
โMay-09-2018 03:16 PM
Ohio_Engineer wrote:
John, The BS R250 is a "Commercial" grade steel body tire. As such I would expect it to be more durable than a more basic "consumer" grade tire. I have heard good things about the 250 from RV owners.
The BS R238 is a "newer" design (unusual for BS to go down in model number) It may have some design improvements in it over the 250 but I do not have access to the actual specification so just a reasonable guess.
I agree with the others about questioning the need for a serious All-Season tire. They generally have a deeper tread which might generate more heat.
Your pictures are definitely a Belt/Tread separation. Surprised your "free spin" inspection didn't allow you to identify the potential for problems before the tire came apart. IMO this is unusual.
Are your tire loads still about the same as in 2012? Still running 80 psi cold? Have you confirmed gauge accuracy? If +/- 2 psi you are good. In my blog I did a TPM accuracy test a few weeks ago you may want to review but IMO the TPM sensors were in acceptable range.
While TPM are really designed just to warn of pressure loss they can be used to confirm CIP too as long as you know the accuracy of your sensors.
Roger Marble, Tire Desigh Engineer (Ret)
โMay-09-2018 12:19 PM
โMay-09-2018 08:34 AM
โMay-08-2018 06:26 PM
JBarca wrote:
Time for new tires. Trying to find someone in the same weight range or that has been running their chosen brands close in the weight range listed below.
Currently using. BFG Commercial TA's LT225/75R16 LR E. 2,680# @ 80 psi. Now 5 1/2 years old.
Axles: 5,000# springs are the limiting factor.
Trailer GVWR: 10,000# Camper loaded: 9,920# GVW
Largest loaded axle: 4,400# aligned with 5,360# of tires/axle
Needs: I need/want to be able to run winter (below freezing) and summer temperatures on the same tires.
I have had 2 failures this year. This might be from 2 reasons:
1. It is not beyond impossible I ran into a patch potholes. The tires could have been damaged internally and manifested itself to the recent failures.
2. These current failed tires were also potentially made in the same BFG plant they had the recall on the next size from mine during 2012 when I put mine on. This may or may not have to do with the recent failures. BFG Recall
Mine look like this video. Tire shop showing recalled tires
I have a TPM system (Truck Systems TST) and the running pressures at 60 mph were 90psi and 89F stem temperatures when the failures occurred.
I'm not blaming the tires at this point, I want the best LT option within reason to replace them with.
New replacement choices I have found.
Michelin XPS Ribs: They are only a summer tire
Bridgestone Duravis R250: They are only a summer tire.
The above both have been reported to give excellent service however I need all season.
Bridgestone Duravis R238: Duravis R238 These appear to be an option as they are all season and similar tread as the R250's
Firestone Transforce HT: These appear to be an option, maybe not as heavy duty as the Duravis R238's Transforce HT
BFG Commercial TA 2: An upgraded version with "Cool Wedge shoulder insert" from what I already have. BFG Commercial TA 2's
BFG has had now 2 recalls in the Commercial TA's including the new 2 version. I linked 2012 one above and here is the 2015 recall. https://www.bfgoodrichtires.com/safety-recall.page
With that, I'm not real high on another set of BFG Commercial TA's.
Anyone with the same size, running all season tires? and other brands in the same or slightly higher weight range? Again need all season options.
I already went through the ST to LT upgrade. See here for wheel weights etc. ST225/75R15 to LT225/75R16 Conversion
Thanks
John
โMay-08-2018 02:03 PM
โMay-08-2018 09:57 AM
โMay-08-2018 09:53 AM
JBarca wrote:
I have had 2 failures this year. This might be from 2 reasons:
1. It is not beyond impossible I ran into a patch of potholes. The tires could have been damaged internally and manifested itself to the recent failures.
2. These current failed tires were also potentially made in the same BFG plant they had the recall on the next size from mine during 2012 when I put mine on. This may or may not have to do with the recent failures. BFG Recall
Mine look like this video. Tire shop showing recalled tires
I have a TPM system (Truck Systems TST) and the running pressures at 60 mph were 90psi and 89F stem temperatures when the failures occurred.
โMay-08-2018 09:02 AM