New Tires - Page 2 - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-22-2007, 01:20 PM   #15
Senior Member
 
Name: jim
Trailer: Casita 2000 17ft. Liberty
California
Posts: 163
Here's the whole scoop, Brian on my 13 footer" tires.
Capitol Korea $59.00
185 R14
DOT 8erk
65psi
LT load range D
Maybe these won't blow out!
__________________

__________________
jim munson is offline   Reply With Quote
Old 06-22-2007, 05:08 PM   #16
Senior Member
 
Brian B-P's Avatar
 
Name: Brian
Trailer: Boler (B1700RGH) 1979
Alberta
Posts: 5,000
Thanks Jim.

So they are a load range D tire, with the usual inflation pressure for that load range. The surprising part, to me, is that there is a tire as small as 185R14 of the LT type.

Could this be the Jupiter/Capital SV-820? If so, it appears to be a commercial tire. The Michelin Agilis which I mentioned in an earlier topic appears immediately above it on the same page. This seems like quite a reasonable choice, although for my 17' Boler I want a larger size (even the stock is 205/75-14).

Another source (Roadhaus) lists it as a LT tire as well, and notes that it is "made by Kelly-Springfield". This is a VW camper site; light commercial Euro vans use tires about the size of our larger trailers, and need load capacities higher than is common in North America for that size, so VW van fans are often concerned with finding suitable tires, and find these commercial products (as well as small LT sizes).
__________________

__________________
1979 Boler B1700RGH, pulled by 2004 Toyota Sienna LE 2WD
Information is good. Lack of information is not so good, but misinformation is much worse. Check facts, and apply common sense liberally.
STATUS: No longer active in forum.
Brian B-P is offline   Reply With Quote
Old 06-22-2007, 07:09 PM   #17
Senior Member
 
Alf S.'s Avatar
 
Name: Alfred
Trailer: 2014 Escape 5.0TA / 2010 Nissan Frontier
Ontario
Posts: 3,815
Registry
Send a message via Yahoo to Alf S.
Quote:
The price difference is a little surprising to me, given that the Goodyear brand is not commonly a cut-price offering and there's nothing special about Carlisle. Are they really comparable; that is, are both tires the same load rating?
Hi: Brian... The price for the Carlisle's( bias or radial) was at OK Tire the price for the Marathon's(radial) was from our local R.V. Dealer Maybe he likes me as I spend a good deal of $$$'s there!!! I said to him that this might be a good time to repack the wheel berings and he said he would do them for $30.00 Alf S. North shore of Lake Erie
__________________
Alf S. is offline   Reply With Quote
Old 06-26-2007, 06:44 PM   #18
Member
 
Trailer: Casita 17 ft Spirit Deluxe
Posts: 51
Quote:
The Kuhmos are a commercial tires, not ST (one of the errors in this Tire Rack page); in my view there's absolutely nothing wrong with that, and it may help explain the higher speed rating.

The "heavier ply" presumably means a higher ply rating - that is just another way of saying that the Kuhmos are are load range D tires; 14" Marathons are only available up to load range C. [b]If the Load Range C tires have appropriate capacity, is there really a point to going to heavier "D" tires? It's not a quality rating...

The higher speed rating does seem to me like a factor worthy of consideration.
The Casita 17ft trailers have been having NUMEROUS tire failures (bulges, tread separation, etc.) with Marathon Load Range C tires (go over to either the Casita Club Forum or the Casita Travel Trailer Forum and do some searches).

MANY of us have gone to the Kumho 857 Radial Tires. They offer 20% more weight capacity per tire (2240# vs. 1850#) beside offering 8 ply rating and a 99mph speed rating, all for LESS than the cost of Marathon "Load C" STs in the same size.

Not one complaint or failure by anyone running them yet.

Bob
__________________
bobinyelm is offline   Reply With Quote
Old 06-26-2007, 08:43 PM   #19
Senior Member
 
Brian B-P's Avatar
 
Name: Brian
Trailer: Boler (B1700RGH) 1979
Alberta
Posts: 5,000
I suspect that the condition "If the Load Range C tires have appropriate capacity" isn't really being met in some cases. With moderate underinflation, unbalanced loading, and highway speeds, perhaps too much is being asked of the load range C tire? A higher load range is one solution; larger tires might be another. I'm not trying to re-open the "failing Marathons" debate... it is for trailers not pushing the limits, that I wonder about the higher load range (also described as a higher ply rating).
__________________
1979 Boler B1700RGH, pulled by 2004 Toyota Sienna LE 2WD
Information is good. Lack of information is not so good, but misinformation is much worse. Check facts, and apply common sense liberally.
STATUS: No longer active in forum.
Brian B-P is offline   Reply With Quote
Old 06-27-2007, 06:09 PM   #20
Junior Member
 
Trailer: 95 Casita Spirit Deluxe 16 ft
Posts: 3
Quote:
The Casita 17ft trailers have been having NUMEROUS tire failures (bulges, tread separation, etc.) with Marathon Load Range C tires (go over to either the Casita Club Forum or the Casita Travel Trailer Forum and do some searches).

MANY of us have gone to the Kumho 857 Radial Tires. They offer 20% more weight capacity per tire (2240# vs. 1850#) beside offering 8 ply rating and a 99mph speed rating, all for LESS than the cost of Marathon "Load C" STs in the same size.

Not one complaint or failure by anyone running them yet.

Bob
I just purchased a pair of the Kumho's too for my 16 SD, but haven't used them enough to make any judgement about them. When I asked the dealer where I purchased them if he had balanced them using the lug-centric adapter, he kind of looked at me with a blank stare. I'll be going elsewhere for a re-balance.

What the dealer told me, however, is that given the traveling weight of my SD (I estimate between 2600-2700 lbs. loaded,) I should be able to run them at 50 PSI (max is 65 PSI.) Anyone have any thoughts on that? It sounds reasonable, but given his response regarding the balancing of the tires, I don't have the warm and fuzzys about the dealer's PSI advice .
__________________
MikeC is offline   Reply With Quote
Old 06-27-2007, 08:08 PM   #21
Senior Member
 
Brian B-P's Avatar
 
Name: Brian
Trailer: Boler (B1700RGH) 1979
Alberta
Posts: 5,000
Quote:
...What the dealer told me, however, is that given the traveling weight of my SD (I estimate between 2600-2700 lbs. loaded,) I should be able to run them at 50 PSI (max is 65 PSI.) Anyone have any thoughts on that?
I believe that what he is saying is that you only need the capacity of a Load Range C tire, so you only need to run that pressure. Based on Bob's post, I assume we are talking about 205R14 Kumho Radial 857, but it's not clear what the comparative Marathon is (ST205/75R14 to match the width, or ST215/75R14 to match the height?). Since the Kumho 205R14 is taller than a 205/75R14, it should have at least the same capacity as ST205/75R14 at the same pressure, so maybe it would be 1760 lb (as shown in the Goodyear Marathon inflation/load table).

2700 lb of trailer, minus maybe 350 pounds of tongue weight, leaves maybe 2350 on the axle, or somewhere around 1175 lb per tire... way under the capacity of the load range C tires, or of the Kumho 205R14 at 50 psi. Even if the trailer load is badly skewed to one side, it should still be fine, unless I have misunderstood something about the proposed configuration.
__________________

__________________
1979 Boler B1700RGH, pulled by 2004 Toyota Sienna LE 2WD
Information is good. Lack of information is not so good, but misinformation is much worse. Check facts, and apply common sense liberally.
STATUS: No longer active in forum.
Brian B-P is offline   Reply With Quote
Reply

Tags
tires


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
P185-80 tires OR ST185-80 Tires ericmarlo Towing, Hitching, Axles and Running Gear 19 12-30-2014 02:14 PM
Replacing my tires & rims... do they have to be trailer tires? David Scott Towing, Hitching, Axles and Running Gear 20 10-16-2012 08:25 PM
Tow vehicle with rear tires larger than front tires? Cory Lewis Towing, Hitching, Axles and Running Gear 2 02-15-2010 11:33 PM
ST Tires Pete Dumbleton Towing, Hitching, Axles and Running Gear 7 04-13-2008 10:37 PM
Need new tires Don Davis Modifications, Alterations and Updates 0 12-31-1969 07:00 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:36 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.