13 or 14 tires?? - Page 2 - Fiberglass RV


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Old 10-01-2011, 05:09 PM   #15
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Hi Harry, welcome to FiberglassRV. You don't have the year of your Scamp in your profile. Prior to changing the worn-out axle on my trailer, there was no way I would have been able to get any larger tires on it than the 13". Older trailers often have axles that have "settled."
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Old 10-01-2011, 07:38 PM   #16
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Quote:
Originally Posted by Greg H View Post
70 and 60 series is old school width.
60 & 70 is aspect ratio, not width, the number refers to the height of the sidewall. AFAIK it is still used on new tires.
The first number (like 185) is the section width, which is actually the width of the tire, (not always the tread width)
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Old 10-01-2011, 07:47 PM   #17
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Originally Posted by Laura03 View Post
We are considering on getting 14" tires for a scamp vs. the normal 13" they come with. Does anybody know if there will be any great differance?
They are sold with 13's normally so I am guessing that there should not be any problems going down the road.

Rich
Just as an example... A 205/75R 14 is actually only a little bit taller than a 185/80R 13 (roughly 3/4" radius difference) The latter fits a new Scamp 13 very well and is available in a "C" class tire.
The difference is roughly 30 revs per mile approximately 780 & 810 respectively
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Old 10-01-2011, 10:44 PM   #18
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I just ordered a new 13' scamp and asked if 14" tires were possible and was tolld definitively no. Which trailer size are you ordering?
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Old 10-02-2011, 08:58 AM   #19
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Nothing is Simple

I've mentioned it on another thread but I've read more of the (partial) articles now. There are many good tips in this series of article snip-its. I would love to read the whole articles and will subscribe so I can read more. There are numerous little bits of important thoughts in these articles, particularly for the new RVer.

A number mention tires, particularly tow vehicle tires and their effect on towability.

RV Lifestyle - Hitch Hints & Wagon Masters
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Old 10-02-2011, 11:59 PM   #20
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I have ordered 205/80R14 tires to replace my OEM Scamp 13-inch tires. Should have them by Wednesday or thursday. The tire guys say that they will work without any mods. Will keep U all posted.
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Old 10-03-2011, 06:54 PM   #21
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Please do - pictures of the clearance would be fantastic.

Scamp was convinced it couldn't possibly work on the 13' with the different axle and lower ground clearance than the 16'.
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Old 10-03-2011, 07:33 PM   #22
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Quote:
Originally Posted by Gattopuin64 View Post
The tire guys say that they will work without any mods.
We'll all hope for the best... the tire guy understand how torsion axles work... right? Up and back, not just up and down....
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Old 10-13-2011, 12:20 PM   #23
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Originally Posted by Bruce Thomas View Post
given the same type of tire and load rating etc, a bigger tire will normally run cooler and the bearings will spin slower...think of a roller skate wheel on your trailer and how fast it would be spinning at highway speeds...the other extreme would be look how slow the tractor trailer wheels seem as they roll by at 70mph....so less friction and slower speeds...unless you select smaller sidewalls vs original (70series vs 60 say) you'll raise the trailer slightly also.
Our recently purchased Boler 1300 cannot (according to the garage) accommodate 14" tires due to the size of the wheel wells. We had new radial trailer tires installed and the packing redone for our upcoming trip to Texas (abt 2440 mi each way). Is there anything we should be watching for in terms of the tires during our trip? Thanks!
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Old 10-13-2011, 01:22 PM   #24
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Tire watching

My process is to check air pressure frequently. Probably every other week I measure the tires when on the road.

Every time we stop I walk around and touch each tire on the trailer and tow vehicle, looking for anything out of the ordinary in tread temperature or pressure. Though we carry a pressure gauge and temperature gauge in the car I do not use these unless my hand detects an issue.

As well I check the trailer bearings for temperature each time we stop, simply touching the bearing housing.

We also check our trailer lights every morning we travel. A benefit of this is that it involves two people and results in us both checking the hitch lock (and door lock since we had the door open once on an Interstate.)
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Old 10-14-2011, 07:41 AM   #25
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Quote:
Originally Posted by honda03842 View Post
My process is to check air pressure frequently. Probably every other week I measure the tires when on the road.

Every time we stop I walk around and touch each tire on the trailer and tow vehicle, looking for anything out of the ordinary in tread temperature or pressure. Though we carry a pressure gauge and temperature gauge in the car I do not use these unless my hand detects an issue.

As well I check the trailer bearings for temperature each time we stop, simply touching the bearing housing.

We also check our trailer lights every morning we travel. A benefit of this is that it involves two people and results in us both checking the hitch lock (and door lock since we had the door open once on an Interstate.)
Thank you I have added these to my checklist for our trip from Ontario to Brownsville, Texas (we leave tomorrow). Read all of your posts as well as those of a couple of the other moderators in hopes we can avoid some of the newbie challenges. It's a great website! The amount of information is a bit overwhelming but it's wonderful to have it at my fingertips. Kudos to the webmaster, moderators, and all the contributors.
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