LT vs ST - Dutchmen Owners

Go Back   Dutchmen Owners > Dutchmen Technical | Towing, Maintenance and Repairs > Chassis and Running Gear
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 10-06-2015, 10:16 AM   #1
Senior Member
 
Join Date: Jan 2015
Location: Roselle
Posts: 1,157
Illinois
LT vs ST

When you all switched to 17.5's and dumped your Westlake's, did you go to Light Truck or stay with Special Trailer. I'm reading about sidewall flex and things from Tire Rack, Consumer Reports, etc. and am getting confused. For 3 grand, I want to make the right move. Thanks,
Rusty
__________________

__________________
2015 Black F-350 Platinum Diesel Dually Crew Cab
2019 Riverstone Legacy 38MB (Full Paint/All Options)
2015 Voltage 3990 (Full Paint, All Options) Sold 6/18
2005 Harley Ultra Classic w/too many miles
lcv800 is offline   Reply With Quote
Old 10-06-2015, 12:09 PM   #2
Senior Member
 
donzinger's Avatar
 
Join Date: Aug 2013
Location: Memphis
Posts: 1,447
Michigan
I went with the big Continental HTL2's: Trailer Tires and Wheels - Steel & Aluminum Trailer Wheels, Bias & Radial Trailer Tires
__________________

__________________
2014-3950, Full Paint, 17.5" tires, 370W solar, 3100W Magnum inverter w/ AGS, 7500w diesel generator, Micro-Air Easy Start 364 (x3)
2019 Ram 3500 Limited w/ Max Tow pkg
donzinger is offline   Reply With Quote
Old 10-06-2015, 03:50 PM   #3
Senior Member
 
DesertRat's Avatar
 
Join Date: Mar 2014
Location: Desert Hot Springs
Posts: 1,760
California
Once you move up to 17.5 these are truck tires.
Here is were I bought my wheels. 17.5x6.75 Series07 Gunmetal Gray Aluminum HiSpec Trailer Wheel, 8 Lug, Center Cap Incl., 4850 lb Max Load
I bought my tire here.
New Hankook TH10 215 75 R17 5 100 16PR TL BSW Tires | eBay
To save you some money you can just change out one axle at a time as the 215 tires are a match to the 16" that are on it.
I bought on the above sites so I had 6 months to pay using Paypal.
__________________
Mike
2002 42' Monaco Signature Triple Crown tow 2014 F-150
2014 Voltage V3605 Sold 5/3/17
2012 F-350 6.7l CC 4X4, Sold 10/10/17
DesertRat is offline   Reply With Quote
Old 10-06-2015, 08:15 PM   #4
Senior Member
 
hddecker's Avatar
 
Join Date: Jul 2013
Location: kamloops
Posts: 2,152
British Columbia
Quote:
Originally Posted by lcv800 View Post
When you all switched to 17.5's and dumped your Westlake's, did you go to Light Truck or stay with Special Trailer. I'm reading about sidewall flex and things from Tire Rack, Consumer Reports, etc. and am getting confused. For 3 grand, I want to make the right move. Thanks,
Rusty
Well here we go again, gonna stir it up the debate one more time.

Before I get started, I absolutely hate that the North American tire manufacturers have shipped jobs to China. I also hate that the RV manufacturers use the absolute minimum that they can get away with.

Not all ST tires are created equal and not all Chinese ST tires are junk. The following link discusses ST vs LT tires.

Trailer Towing – ST Tires vs. LT Tires | RV 101® your education source for RV information

Tim Fry, senior development engineer with Goodyear Tire & Rubber Company stated, “The major difference is reflected in the polyester cords used in ST tires. These cords are bigger than they would be for a comparable P or LT tire. Typically, the steel wire also has a larger diameter or greater tensile strength to meet the additional load requirements. Because of the heavier construction for an equal volume of air space, an ST tire is designated to carry more load than a P or LT tire.”

Yes I have heard all of the speed related reasons that people use to justify bigger wheels and tires. How fast do you really have to tow your camper? Even at 65mph the electric drum brakes are marginal, add a couple thousand miles after you adjust them and your trailer braking effectiveness is cut dramatically. Please if your going to be towing at 75-80 MPH let me know, I'll stay home that day.

I had to replace my tires while we were in Newfoundland in 2013. I had the choice of a tire that was a direct replacement or go up one aspect ratio and two load ratings. The direct replacement tires felt flimsy, the side walls deflected easily and just seemed too light handle the load asked of it. The tread rubber on the Power King Towmax tires I replaced seemed like it was too soft. There was significant wear on the outside shoulder of the tire, due to out of aligned axles.

The Gladiator QR-25 ST tires I purchased have very little sidewall deflection. The Towmax tires looked like they would peel of the wheels on tight turns.

We put about 10K miles on the Gladiators during the rest of our Newfoundland trip in 2013. We stayed fairly close to home in 2014, due to my wife's hand surgery, put on less than 5K. This year we did the Alaska trip and added another 10K miles.

At the last fuel stop on the way home I looked at the right side tires and thought they would be good for another trip next year. There was wear on the outside edge of the right side tires, but they still had lots of meat left. (the axles were still out of alignment)

Somewhere in the last 250 miles is where the shackles broke on the left rear axle, by the time we got home the tires on the rear axle were down to the wear bars. never felt a thing where the shackles broke and never saw any tire smoke from the tire rubbing the top of the wheel well.

I for one am glad that I didn't fall for the bigger wheels and LT tire myth. Of course if you start upsizing tires to the degree of larger wheels and tires you will eventually get to an LT tire that comes close to the durability of a good ST tire. I invested the money I saved on wheels to upgrade my running gear and convert to disk brakes.

Next spring when I buy new tires they will again be Gladiator QR-25 ST.

I know that I will be bombarded by the LT tire folks, but until Gladiator proves they are a reliable tire, I will keep using them.
hddecker is offline   Reply With Quote
Old 10-06-2015, 08:19 PM   #5
Senior Member
 
donzinger's Avatar
 
Join Date: Aug 2013
Location: Memphis
Posts: 1,447
Michigan
No one should bombard you. Your assessment is based on your experience. I went thru three Goodyears in one summer on a smaller and lighter camper. I won't use them again due to my experience. There are folks that have had no issues with their Westlakes - I wasn't going to be the guy to find out.
__________________
2014-3950, Full Paint, 17.5" tires, 370W solar, 3100W Magnum inverter w/ AGS, 7500w diesel generator, Micro-Air Easy Start 364 (x3)
2019 Ram 3500 Limited w/ Max Tow pkg
donzinger is offline   Reply With Quote
Old 10-06-2015, 08:31 PM   #6
Senior Member
 
hddecker's Avatar
 
Join Date: Jul 2013
Location: kamloops
Posts: 2,152
British Columbia
Quote:
Originally Posted by donzinger View Post
No one should bombard you. Your assessment is based on your experience. I went thru three Goodyears in one summer on a smaller and lighter camper. I won't use them again due to my experience. There are folks that have had no issues with their Westlakes - I wasn't going to be the guy to find out.
I used to run Marathons on my old Airstream, that was until Goodyear started making them in China. Got to be a monsterous profit margin, make the tires in China for half the US production costs and raise the prices.
hddecker is offline   Reply With Quote
Old 10-06-2015, 09:07 PM   #7
Senior Member
 
Join Date: Jun 2014
Location: Griswold
Posts: 188
Iowa
I agree on your assessment of the Gladiator tire hd. My brother-in-law put them on his fifth wheeler 10 years ago after he blew one of the bombs. He traded for a new camper last year, the original Gladiators were still on and served him well, never had a problem. That's one reason I went to them, using original 16" factory wheels and 14 ply sidewalls, very solid well built tire. Put on at my Firestone dealer who stocks and sells a lot of Gladiators for ag trailer use here in the Midwest.
__________________
2014 V3605
2015 Harley Road Glide Ultra CVO
2016 F-350 6.7 SRW SupurDuty Crew FX4 Lariat
dougs2 is offline   Reply With Quote
Old 10-06-2015, 09:25 PM   #8
Site Team
 
wahoonc's Avatar
 
Join Date: Jun 2014
Location: Sprung Leak
Posts: 3,138
North Carolina
We have used Gladiators on our heavy utility trailers. Unfortunately they only have a limited number of sizes.

Aaron
__________________
There is madness to my methods
2015 Coleman CM16FBS(traded) 2016 Concord 300DS
2015 Ford Fusion Hybrid following along
wahoonc is offline   Reply With Quote
Old 10-07-2015, 03:00 AM   #9
Senior Member
 
Join Date: Feb 2014
Location: Tucson
Posts: 744
Arizona
You're wasting your money on 17.5 tires and rims. They're overkill and unnecessary on our triple axle toy haulers. Here's why:

My V-3600 maxes out at 19,000 GVWR while the bigger Voltages max at 20,000 GVWR. On my V-3600, deducting the 3,500 pin weight (CAT Scale) from 19,000 GVWR leaves 15,500 pounds on the six tires. That's 2583 pounds per tire, which is well under the 3042 capacity of most any 16" LT tire. If you're rig is 20,000 pounds it's in the area of 2750 per tire.

I put on Michelin XPS-Rib's 1 1/2 years ago and they are wearing great.

Remember the tire issues are with lousy quality Chinese-tires and not with load capacities of said tires. The 16" LT tire has the quality we're looking for.

Save your money and buy the 16" LT.
__________________
2014 Voltage 3600
2013 Chevy 3500 CC DRW
2011 Harley Ultra Limited 2016 RZR 900
azdryheat is offline   Reply With Quote
Old 10-07-2015, 07:32 AM   #10
Senior Member
 
donzinger's Avatar
 
Join Date: Aug 2013
Location: Memphis
Posts: 1,447
Michigan
I ran the XPS Rib on my last rig after the Goodyear issues and they are a great tire as well
__________________
2014-3950, Full Paint, 17.5" tires, 370W solar, 3100W Magnum inverter w/ AGS, 7500w diesel generator, Micro-Air Easy Start 364 (x3)
2019 Ram 3500 Limited w/ Max Tow pkg
donzinger is offline   Reply With Quote
Old 10-07-2015, 09:39 PM   #11
Senior Member
 
Camper2b's Avatar
 
Join Date: Feb 2014
Location: Nashville
Posts: 538
Tennessee
Nothing wrong with overkill in my opinion. I want to try and get my monies worth out of my GY G 614s before I decide on going bigger. So far so good.
__________________
Slim
Former 2014 Vlotage 3200 owner
Camper2b is offline   Reply With Quote
Old 10-07-2015, 09:48 PM   #12
Senior Member
 
donzinger's Avatar
 
Join Date: Aug 2013
Location: Memphis
Posts: 1,447
Michigan
I AGREE! Our camping trips get limited and when we head to NASCAR tracks, we leave late in the day pull in at night. My tires are one less thing to worry about. Oh, and we roll heavy
__________________
2014-3950, Full Paint, 17.5" tires, 370W solar, 3100W Magnum inverter w/ AGS, 7500w diesel generator, Micro-Air Easy Start 364 (x3)
2019 Ram 3500 Limited w/ Max Tow pkg
donzinger is offline   Reply With Quote
Old 10-07-2015, 10:28 PM   #13
Senior Member
 
DesertRat's Avatar
 
Join Date: Mar 2014
Location: Desert Hot Springs
Posts: 1,760
California
Anyone that has been on this site & read any of my tire post know where I stand. If not here the short version. All American made Goodyear 14 ply 16" tires failed on my Teton.
__________________
Mike
2002 42' Monaco Signature Triple Crown tow 2014 F-150
2014 Voltage V3605 Sold 5/3/17
2012 F-350 6.7l CC 4X4, Sold 10/10/17
DesertRat is offline   Reply With Quote
Old 10-08-2015, 02:06 AM   #14
Member
 
Join Date: May 2015
Location: Upland
Posts: 49
California
Etrailer

Has anyone tried these F-rated tires that etrailer.com sells? Good? Bad?
RvrRat is offline   Reply With Quote
Old 10-08-2015, 03:56 AM   #15
Member
 
Join Date: May 2015
Location: Upland
Posts: 49
California
Sorry. The link would help.

Karrier ST235/85R16 Radial Trailer Tire - Load Range F Kenda Tires and Wheels AM10501
RvrRat is offline   Reply With Quote
Old 10-09-2015, 01:52 AM   #16
Senior Member
 
hddecker's Avatar
 
Join Date: Jul 2013
Location: kamloops
Posts: 2,152
British Columbia
Quote:
Originally Posted by RvrRat View Post
Never used Kenda Tires, but going up in Load Range is never a bad thing.

When I replaced my tires, I went from E to G Load Range and I won't go back the E rated tires.
__________________

hddecker is offline   Reply With Quote
Reply

Thread Tools
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


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Dutchmen RV or any of its affiliates. This is an independent, unofficial site.


All times are GMT. The time now is 10:43 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright 2012 Social Knowledge, LLC All Rights Reserved.
×