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10-18-2014, 04:20 PM
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#21
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Rivet Master
2009 23' FB Flying Cloud
Canmore
, Alberta
Join Date: Nov 2013
Posts: 1,762
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Thanks interstate flyer! You mentioned earlier that hub centring rings were not required for the Sendel wheels.
Did the OEM Airstream hub covers and lug nuts work on the new wheels?
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10-18-2014, 04:55 PM
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#22
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Rivet Master
2017 25' International
Currently Looking...
Currently Looking...
Los Osos
, California
Join Date: Jun 2004
Posts: 916
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I believe that the Sendel hub covers are smaller. I paid $35 all around for new lug nuts. The lug nut covers were cracked on about half of the 2 month old oem nuts.
__________________
2017 Airstream International Serenity 25FB
2016 RAM 2500 Crew Cab Cummins 6.7 Diesel
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10-18-2014, 05:29 PM
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#23
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Rivet Master
2009 23' FB Flying Cloud
Canmore
, Alberta
Join Date: Nov 2013
Posts: 1,762
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Durn! I ordered the Sendel wheels without centre caps. Hope I can find caps locally.
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10-18-2014, 05:55 PM
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#24
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Rivet Master
1960 33' Custom
Athens
, Georgia
Join Date: Jun 2005
Posts: 1,373
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Quote:
Originally Posted by TinTin
The 15 inch Michelins are readily available here. Just received a set from Costco this week.
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are you getting p metric ltx's or did you find some actual LT's in 15" which would be awesome?
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10-18-2014, 06:22 PM
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#25
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Rivet Master
2009 23' FB Flying Cloud
Canmore
, Alberta
Join Date: Nov 2013
Posts: 1,762
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LTX MS2 P235 75R15s
Sent from my iPad using Airstream Forums
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11-18-2014, 08:49 AM
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#26
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2 Rivet Member
1973 31' Sovereign
Boerne
, Texas
Join Date: May 2014
Posts: 43
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This is exactly the info I needed. Going to discount tire to see if they have those in stock near us!
Gwendolyn
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11-18-2014, 11:23 AM
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#27
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Rivet Master
1987 32' Excella
Nepean
, Ontario
Join Date: Mar 2006
Posts: 1,414
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Quote:
Originally Posted by interstateflyer
I found that while the Michelin LT load range "E"s on upgraded 16" Sendel wheels gave me peace of mind on my 2013 19' Bambi, their harsh ride popped at least 8 rivets at 65-75 psi.
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The cause of the rivets popping was most likely unbalanced wheels, which can set up quite a bit of vibration at highway speeds. The solution is Centramatics - see Video-How-Centramatic-Balancers-Work - Centramatic Wheel Balancer, Tire Balancers for DFW Trucks
__________________
VE3JDZ
AIR 12148
1987 Excella 32-foot
1999 Dodge Ram 2500HD Diesel
WBCCI 8080
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11-19-2014, 08:42 PM
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#28
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Rivet Master
1968 22' Safari
Buda
, Texas
Join Date: Sep 2011
Posts: 612
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OK, so can I run my new Goodyear Wrangler HT's at the max tire pressure of 65 psi to get the most weight capacity or should I go 85 to 90 % of rated weight capacity
Sent from my iPhone
David & Diane
__________________
DFlores
David & Diana
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11-19-2014, 08:49 PM
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#29
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Rivet Master
2005 39' Land Yacht 390 XL 396
Common Sense
, Texas
Join Date: Sep 2007
Posts: 5,319
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Quote:
Originally Posted by DFlores
OK, so can I run my new Goodyear Wrangler HT's at the max tire pressure of 65 psi to get the most weight capacity or should I go 85 to 90 % of rated weight capacity
Sent from my iPhone
David & Diane
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Not only will max air pressure give you the most weight capacity, it will also give you the most stability.
__________________
Regards,
Steve
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11-20-2014, 05:30 AM
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#30
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CapriRacer
I'm in the
, US
Join Date: Sep 2012
Posts: 989
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Quote:
Originally Posted by DFlores
OK, so can I run my new Goodyear Wrangler HT's at the max tire pressure of 65 psi to get the most weight capacity or should I go 85 to 90 % of rated weight capacity
Sent from my iPhone
David & Diane
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We need a lot more detail to answer that question.
1) Are we talking about your trailer or your tow vehicle?
If the tow vehicle, then you need to find the vehicle tire placard on the driver's door - and if the tire size you are currently using is the same as what is listed there, use that pressure. If a different tire size is being used, then we need to recalculate.
2) If we are talking about your trailer, then tell us more about it. Have you weighed it? Did you change tire size and/or type?
Details, please.
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11-20-2014, 07:19 AM
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#31
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Rivet Master
1968 22' Safari
Buda
, Texas
Join Date: Sep 2011
Posts: 612
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Quote:
Originally Posted by CapriRacer
We need a lot more detail to answer that question.
1) Are we talking about your trailer or your tow vehicle?
If the tow vehicle, then you need to find the vehicle tire placard on the driver's door - and if the tire size you are currently using is the same as what is listed there, use that pressure. If a different tire size is being used, then we need to recalculate.
2) If we are talking about your trailer, then tell us more about it. Have you weighed it? Did you change tire size and/or type?
Details, please.
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I am completing a shell off renovation, the original weight on the 68 single axle Safari is 3420 lbs, for this exercise let's use 3500 lbs. I did change tire size, the new tires are Goodyear Wrangler HT in 215 75 15, these are light truck tires with a "D" load rating.
Sent from my iPhone
David & Diane
__________________
DFlores
David & Diana
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11-21-2014, 05:57 AM
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#32
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CapriRacer
I'm in the
, US
Join Date: Sep 2012
Posts: 989
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Quote:
Originally Posted by DFlores
I am completing a shell off renovation, the original weight on the 68 single axle Safari is 3420 lbs, for this exercise let's use 3500 lbs. I did change tire size, the new tires are Goodyear Wrangler HT in 215 75 15, these are light truck tires with a "D" load rating.
Sent from my iPhone
David & Diane
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OK, so let's do the math:
First let's clarify the 3500# value as the tire loading, not the GVW. And since it is an axle value, we'll add 10% to account fr side to side loading variation.
So each tire would be carrying 1925#. I think tires shouldn't be loaded more than 85% of their rated capacity - so that means the inflation pressure has to generate at least a 2265# load carrying capacity.
The tire is rated for 2096# at 65 psi, so I think it is running at 92% of its rated capacity.
Personally, I don't like that value, but to answer your question, you need to be running at 65 psi.
And just to check this out: You should run a pressure buildup test when you get the rig running. The test consists of checking the inflation pressure BEFORE you start for the day (65 psi), then check it after an hour of high speed towing. You should get no more than 72 psi. If you get more than that, you either need to slow down, or get a tire with more load carrying capacity. As a followup to be sure you have captured the max pressure buildup, check after a second hour of running.
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11-21-2014, 07:51 AM
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#33
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Rivet Master
2005 39' Land Yacht 390 XL 396
Common Sense
, Texas
Join Date: Sep 2007
Posts: 5,319
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Years ago when my father started Airstreaming, there were no such things as "Trailer Tires", and everyone used 7.00X15 bias ply truck tires. And, although they didn't last too many miles because the tread wore out quickly, it was very rare to have a tire fail.
Now days the tread on radial trailer tires last a long time, if they don't fail first. The major problem is the amount of damage they will do to the trailer when they do fail. I've heard stories of up to $8,000 damage from a radial trailer tire failure.
Sort of a "Damned if you do, damned if you don't" deal. Wish there was a way around it.
__________________
Regards,
Steve
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11-21-2014, 09:18 AM
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#34
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Rivet Master
1968 22' Safari
Buda
, Texas
Join Date: Sep 2011
Posts: 612
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Capri,
Thank you for response, will have to weigh the trailer as soon as I can to get real weight.
Thanks again.
__________________
DFlores
David & Diana
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11-21-2014, 05:26 PM
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#35
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2 Rivet Member
1973 31' Sovereign
Boerne
, Texas
Join Date: May 2014
Posts: 43
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After reading through this (and other) threads, we went ahead and ordered Carlyle ST225/75R15 tires (D load rating) from Discount Tire. Now in the nasty Texas drizzle, my husband has headed over to the Airstream to jack it all up and remove all 4 tires so that they can be taken in for the new ones to be put on. He's a very cautious person, but I'm still praying he doesn't kill himself.
__________________
Gwendolyn
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