Scamp tires ? - Fiberglass RV


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Old 08-06-2013, 05:34 PM   #1
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Name: Kat
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Scamp tires ?

So I've been slowly prepping for the first trip with our new to us 1980 scamp. Needless to say I'm thinking I need a new spare and may need main tires - yet they have no standard size on them besides B78- 13 st and the tire place I called seems clueless . Any help would be great : ) thank you - I did read one past post but the link it Listed is not current : (

Kat from MN
Off to WI in 4 days
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Old 08-06-2013, 05:55 PM   #2
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Here's a pretty useful trailer tire size conversion chart...

http://www.petestirestore.com/blog/T...uide-bp16.html
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Old 08-06-2013, 06:26 PM   #3
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LOL.......I took a B78 tire into Costco and the kid was baffled. I guess the tire was older than him.
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Old 08-06-2013, 06:40 PM   #4
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I think any place where the staff don't understand the tire size B78-13 should be considered just a store where things can be purchased, not a source of expertise at all. I would ignore anything they say.

This is a common question: try using the Google search tool in this forum for "B78-13" (no spaces in that size designation) and you'll find several relevant discussions.
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Old 08-06-2013, 06:43 PM   #5
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Tractor supply sells trailer tires already mounted on nice white rims at a great price.
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Old 08-06-2013, 06:45 PM   #6
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Try size 185R13. B78 is a bias tire you want radials for best towing. Try for 4 or 6 ply.
Chuck
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Old 08-06-2013, 06:55 PM   #7
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this is the tires I have on my 1986 Scamp 13.
Hercules Power Str Trailer Tire s 175 80R13 175 80 13 1758013 80R R13 | eBay
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Old 08-06-2013, 07:12 PM   #8
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Originally Posted by stevebaz View Post
this is the tires I have on my 1986 Scamp 13.
That is a pretty good price. On tires that fit my Scamp 13

You can get tires that will "work" at wally mart for $40 but I don't think I would use them for long trips.

On the other hand don't travel far enough to justify more expensive $100 radial tires since for safety I have to replace them due to age deterioration in about 5 years. With a whole lot of that expensive tread still left.

Something in the middle at $66 looks like it hits my sweet spot. Thanks
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Old 08-06-2013, 07:25 PM   #9
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I suspect that those B78's are so old that to replace or not replace is a moot point.
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Old 08-06-2013, 07:33 PM   #10
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The Scamp Trailer factory is pretty close to you. Call them and ask what they recommend for size. You could even buy your tires and probably new rims from Scamp.
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Old 08-06-2013, 07:37 PM   #11
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Quote:
Originally Posted by FTTRV View Post
Try size 185R13
Much more likely 185/80R13.

Since almost any currently available 13" ST tire will be larger than the B78-13, going as small as is readily available makes for the easiest fit.
Goodyear Marathons, Maxxis M8008, and Carlisle radials all start at ST175/80R13.


Quote:
Originally Posted by FTTRV View Post
Try for 4 or 6 ply.
Equivalent ply ratings are obsolete, although still sometimes listed. "4 ply rating" is load range B, and that's the lowest load range available in almost any kind of tire for roadgoing vehicles. "6 ply rating" is load range C, and that's the lowest load range available in some trailer tire sizes; even higher may be available but would be pointless. The load capacity of any tire is shown on the tire and in spec sheets; an ST185/80R13 has 1200 pounds per tire capacity (1100 pounds in a ST175/80R13) even in load range B, which is enough for the heaviest Scamp 13.
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Old 08-06-2013, 07:49 PM   #12
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Great info. The spare is in sad shape and will be first to replace . Can't get a pair of what I want in for the trip so they may have to make it just a bit further : ) or maybe a on the road switch closer to
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Old 08-06-2013, 08:01 PM   #13
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Opps - closer to the cities : )
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Old 08-06-2013, 08:05 PM   #14
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Originally Posted by Screaminge View Post
Great info. The spare is in sad shape and will be first to replace . Can't get a pair of what I want in for the trip so they may have to make it just a bit further : ) or maybe a on the road switch closer to
Look for a date stamp on those tires. Typically a month and year pressed into the tires often on the inward facing side.

Tires rot with age from the inside out. Does not matter what they look like. New in the warehouse they would be junk at six years of sitting on a shelf in a box.

Five to six years is pretty much the max most information says is safe, some advocate four to five years. Tire stores will refuse to mount after a certain number of years (don't recall what it is off hand) because it's just unsafe from age and they would be liable if they installed the tire.

I think it was Goodyear that said on their site that a trailer tire loses about 10 percent of its strength and durability every year. I would take new $40 tires over "expired" tires. Keep the best you have for a spare and figure it's only good to limp to a tire store if it is outdated.
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