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Old 07-11-2015, 01:30 PM   #57
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Originally Posted by JamuJoe View Post
BTW, getting the spare in and out of the spare carrier is a lying on the ground, knuckle scraping PIA. I surely could wish for the rear bumper carrier on my last trailer, or at least a cable suspend system common on many cars.
Jamu Joe
After JC adjusted my spare carrier, unloading or loading it from under the front of the AS is the same as it was beforehand, when I had the OEM 15" tires/wheels. Maybe you just need to have the rack adjusted.
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Old 07-12-2015, 11:25 AM   #58
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The spare tire access holder is just the same as originally with the 14" tire. It is simply an awkward design with several inherent safety hazards. Airstream could do much better for little added cost.


Safe Travels,
Jamu Joe
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Old 02-13-2016, 08:12 AM   #59
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As mentioned earlier, Michelin states the XPS Rib tire is a "Summer" tire. What was not mentioned is that there appears to be a comparable tire which is "All Season". It's called the XPS Traction and is slightly more expensive.

I'm curious what makes the tire suitable for its environment. If it is just the tread, the the Rib would be my choice for a trailer because I don't need as much traction. But if it is tire composition, then I'd go with the Traction.

What is interesting is that they state 'not intended for cold temperatures first' then talk about snow and ice. It's as if they are saying stay out of the cold...period.

Crack. Pop. Bang.
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Old 02-13-2016, 08:54 AM   #60
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Possibly the rubber compound gets harder as it gets colder?
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Old 02-13-2016, 09:26 AM   #61
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Its got a rib tread not an all season tread.
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Old 02-13-2016, 11:00 AM   #62
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Its got a rib tread not an all season tread.
I see that, but is that the only difference?
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Old 02-13-2016, 06:17 PM   #63
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Michelin XPS RIB vs. LTX M/S2

The tire is completely different with a thicker sidewall and a higher quality build.Fedex and UPS use the Ribs on delivery trucks due to durability and long wear.I have been using Ribs in a 16 inch for over 30,000 miles on our 28ft International.They show no wear and have even wear.I run 65-70 psi.


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Old 02-13-2016, 09:46 PM   #64
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I'm going to be a total geek and run out and examine the tires on the next FedEx or UPS truck that comes to my house. Meanwhile, the Michelin web site states the following:

Summer tires are primarily designed for high-performance vehicles and provide optimal dry and wet performance levels in a temperate environment. Summer tires are not designed to be used during the winter season where temperatures are colder and approach freezing consistently as their performance would be less than optimal.

Is it really just tread design that makes it summer only.....
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Old 02-14-2016, 05:57 AM   #65
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[snip]
Is it really just tread design that makes it summer only.....
I will venture a guess that the rubber compound is different to maximize the tires' grip on the pavement in warm weather, similar to Nokian snow tires which offer a softer compound for cold weather use. I have never used these, but folks from the northern climes swear by the traction afforded when the Nokian tire rubber meets cold road pavement.

Perhaps the tire experts here could comment?

Thanks,

Peter
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Old 02-14-2016, 07:57 AM   #66
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The Michelin XPS Rib is not only a commercial summer rib tire, it is also a steel ply tire - compared to the Michelin LTX M/S2 which is an all season as well as a polyester/steel construction.

This means that the XPS Rib is designed for retreading and heavy service, like on UPS and FedEx trucks, where the emphasis is on longevity, as opposed to LTX M/S2 would be more designed for consumer usage on a pickup or van, where the emphasis would be on fuel economy, traction, and soft ride.
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Old 02-14-2016, 08:35 AM   #67
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Quote:
Originally Posted by Ted S. View Post
As mentioned earlier, Michelin states the XPS Rib tire is a "Summer" tire. What was not mentioned is that there appears to be a comparable tire which is "All Season". It's called the XPS Traction and is slightly more expensive.

I'm curious what makes the tire suitable for its environment. If it is just the tread, the the Rib would be my choice for a trailer because I don't need as much traction. But if it is tire composition, then I'd go with the Traction.

What is interesting is that they state 'not intended for cold temperatures first' then talk about snow and ice. It's as if they are saying stay out of the cold...period.

Crack. Pop. Bang.
I may be wrong, but I think Ted is asking about the difference between the XPS Rib and the XPS Traction.
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Old 02-15-2016, 09:15 PM   #68
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So anyway, I found some interesting info. on the Michelin website from a link someone on Airforms posted on another Thread. Bottom line, it appears the summer tire has a different composition, which hardens and looses traction in colder temperatures regardless of snow and ice:

Do I need winter tires?

Yes, if you live in an area where the ambient temperature regularly approaches freezing point below 44F or gets heavy snow or ice then you will likely need winter tires. At that temperature, the rubber on standard tires starts to harden and can lose its grip.


More here:

http://www.tirerack.com/tires/tirete...jsp?techid=273
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Old 02-15-2016, 09:58 PM   #69
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However the FedEx and UPS trucks use rib tires on a 19.5 tire - a true "truck tire". Do not confuse the construction and load rating of a LT tire (16", 17", 18", 20") with a true commercial truck tire (16.5", 19.5" etc.). Different beasts altogether. A few years back, when I had a 11.5' slide in camper in my pickup with SRWs, I looked into upgrading from the LT wheels/tires to commercial grade 19.5" rims/tires and came across these guys who made the rims for GM, Ford and Ram trucks:
http://www.ricksontruckwheels.com/

I may still get a set for my current TV, even though I don't have all the weight of a slide-in. Nothing to slow me down but money...

Tim
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Old 02-15-2016, 10:11 PM   #70
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After tons of research, my Michelin XPS RIB vs. LTX M/S2 debate is over.

I'm going with the LTX M/S2.
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