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Old 04-29-2008, 01:28 PM   #1
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mt. Prospect , Illinois
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Why not upgrade the tires on my Bambi?

I'm about to buy new tires to replace the originals on the 2000 19" Bambi I just purchased. Airstream installed 225/75-15R ST tires in load range C. That means they are rated for 2150# each at 50psi inflation. With the trailer rated at 4500# gross that seems underrated. I realize that several hundred pounds are carried by the hitch, so the load should be within the range of the tires. However, for a few bucks more, I can go to a D rated tire of the same size. It is rated at 2540#, so the safety margin is increased. The D rated tires are run at 65psi inflation, so there could be less rolling resistance (and better mileage) although they would ride harder.
Stay with C rating or move to D? Any negatives?

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Old 04-29-2008, 01:42 PM   #2
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If it was me, I would go with the Ds. The Bambi may ride slightly harsher, but it would give me more peace of mind.

I have a 25FB that came with D's. I had 3 sepatate blowouts on the road last year with OEM Goodyear Marathons. I watch tire pressure like a hawk, so I figure that my tires were new old stock when they were put on at the factory. These tires only had about 12,000 miles on them.

No longer trusting the Marathons, I went to complete set (4) of Maxxis load range Es. I run them at 70psi. I have now covered another 15,000 miles and have not had any problems.


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Old 04-29-2008, 02:26 PM   #3
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Originally Posted by robert claus
...Stay with C rating or move to D? Any negatives?
hi robert

i'd go with the d rated tire and inflate as dictated by load.

u fail to mention IF there has been any issues with the current tires...

like blow outs or excessive wear and so on...

i followed a newer bambi a few miles last year and every rr track or dip or bump...

the tires would compress and flatten out like marshmallows...

it looked scary; in talking with the owner later he had 3 blow outs in 2-3 cross country trips...

he was also a bit over the carry capacity.

all of the true things that i am about to tell you are shameless lies. l.b.j.

we are here on earth to fart around. don't let anybody tell you any different. k.v.
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Old 04-29-2008, 02:35 PM   #4

2003 25' Classic
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I think the "D's" have it.

Better to have more than you need, than need more than you have...
AF #1

"Sticks & stones can break your bones...and hail will dent your Airstream"

So when is this..."old enough to know better" supposed to kick in?
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Old 04-29-2008, 07:00 PM   #5
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Done - ordered the D rated tires from Tire Rack. Thanks, everyone!
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Old 04-29-2008, 07:52 PM   #6
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Hi Robert. Nice to see another "local" here.

My 2003 19' Bambi had D rated tires. I think going D rated is an excellent idea...Airstream does too since that's what they did a few model years later on the same unit!

Hope to see you at the Midwest Forums Rally near Bloomington/Normal this year.
Computers manufactured by companies such as IBM, Compaq and millions of others are by far the most popular with about 70 million machines in use worldwide. Macintosh fans note that cockroaches are far more numerous than humans and that numbers alone do not denote a higher life form. -NY Times 11/91
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Old 04-29-2008, 08:04 PM   #7
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My '06 19CCD came with LRD 225/75-15 Marathon's . I dumped them after the first season and went with BFG Commercial T/A 227/75-16 LRE tires that have a 2860lb capacity per tire at 80 psi. I only inflate them to 65, and am much happier and sleep better knowing that I don't have to worry about all of the potential Marathon 'issues'
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Old 04-30-2008, 05:01 AM   #8
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Upgrade Tires

Ditto lewster.

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