Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
 

Go Back   Keystone RV Forums > Keystone Tech Forums > Tires, Tires, Tires!
Click Here to Login

Reply
 
Thread Tools Display Modes
 
Old 09-11-2021, 08:00 AM   #1
gascott
Junior Member
 
Join Date: Sep 2021
Location: Corona
Posts: 8
2005 Keystone Everest 344J Aluminum Wheels/Tires

Is anyone still using the 16x6J, 12 hole, 8x6.5" modular aluminum wheels that came as an option on the 2005 Keystone Everest 5th wheel trailers? Can they support Load Range G (110 psi) tires? I called Keystone and they didn't know who manufactured these wheels, so I can't call the manufacturer to find out if these wheels can support 110 psi tires. The markings on the back of the my wheels are: TTW INC., Made in China, 16x6J, MAX LOAD 3042 LBS C, TR4 ZNL, DOT-T. Original tire size is 235/85R16E (80 psi). My 344J model GVWR is 14020 lbs.
gascott is offline   Reply With Quote
Old 09-11-2021, 10:06 AM   #2
JRTJH
Site Team
 
JRTJH's Avatar
 
Join Date: Mar 2011
Location: Gaylord
Posts: 22,069
TTW INC is, I believe, Tredit Tire and Wheel, Inc.

https://www.tredittire.com/

You might touch base with them to see if they'll admit to supplying the wheels to Keystone....

That said, a set of 17 or 18 year old wheels, made in China and marked with max load of 3042 and originally equipped with tires rated for [email protected] is not the wheel quality that I'd want to put under a trailer sporting tires that are rated for [email protected] PSI.

While you may never have a problem, just squatting in front of those tires with an air chuck in my hand, I'd sure question those wheel rims holding that kind of pressure with my body in front of what might come "unglued or maybe not"....
__________________
John



2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
JRTJH is offline   Reply With Quote
Old 09-11-2021, 10:35 AM   #3
sourdough
Site Team
 
Join Date: Feb 2014
Location: W. Texas
Posts: 12,939
Quote:
Originally Posted by JRTJH View Post
TTW INC is, I believe, Tredit Tire and Wheel, Inc.

https://www.tredittire.com/

You might touch base with them to see if they'll admit to supplying the wheels to Keystone....

That said, a set of 17 or 18 year old wheels, made in China and marked with max load of 3042 and originally equipped with tires rated for [email protected] is not the wheel quality that I'd want to put under a trailer sporting tires that are rated for [email protected] PSI.

While you may never have a problem, just squatting in front of those tires with an air chuck in my hand, I'd sure question those wheel rims holding that kind of pressure with my body in front of what might come "unglued or maybe not"....


That is an excellent point. When I was young I never even thought about the wheel/tire pressure correlation, just air it up big or little and go with it.

Fast forward to when I was in my 30s and a fella down at my local tire store got killed by an exploding tire. Don't remember now the exact details but it sure made me think about how those things work together and what can happen if you don't pay attention - a new found kind of respect if you will.
__________________
Danny & Susan wife of 54 years
2019 Ram 3500 Laramie CC SB 6.4 4x4 4.10
2020 Montana High Country 331RL
sourdough is online now   Reply With Quote
Old 09-11-2021, 01:24 PM   #4
CWtheMan
Senior Member
 
CWtheMan's Avatar
 
Join Date: Feb 2010
Location: Taylors, SC
Posts: 2,626
Quote:
Originally Posted by gascott View Post
Is anyone still using the 16x6J, 12 hole, 8x6.5" modular aluminum wheels that came as an option on the 2005 Keystone Everest 5th wheel trailers? Can they support Load Range G (110 psi) tires? I called Keystone and they didn't know who manufactured these wheels, so I can't call the manufacturer to find out if these wheels can support 110 psi tires. The markings on the back of the my wheels are: TTW INC., Made in China, 16x6J, MAX LOAD 3042 LBS C, TR4 ZNL, DOT-T. Original tire size is 235/85R16E (80 psi). My 344J model GVWR is 14020 lbs.
-

We had a 2003 Everest with those wheels and they rere rated at 3042# and 80 PSI.

I'll bet your original tires were LT? Our 2003 only had 32" center to center axle spacing and those LT235/85R16 tires were too tall. In late 2004 Keystone started using LT235/85R16 LRE tires on all 6000# certified GAWRs and went to 34" axle spacing. When loaded to the maximum cargo capacity the LTs were much like the ST235/80R16 LRD tires on our 2003. By early 2006 the ST235/80R16 LRE tires became standard for the 6000# axles.

Welcome to the forum. Here is a reference to use.

https://keystone-rv-dealer-app.cdn.p...ers_manual.pdf
CWtheMan is offline   Reply With Quote
Old 09-11-2021, 02:04 PM   #5
wiredgeorge
Senior Member
 
wiredgeorge's Avatar
 
Join Date: Nov 2017
Location: Mico, TX
Posts: 3,981
Just a thought but if you 12 lug rims won't allow for the PSI you desire in a stouter tire, change hubs to 8 lug which off real alternatives.
__________________
wiredgeorge Mico TX
2006 F350 CC 4WD 6.0L
2002 Keystone Cougar 278
2006 GL1800 Roadsmith Trike
wiredgeorge is offline   Reply With Quote
Old 09-12-2021, 08:11 AM   #6
gascott
Junior Member
 
Join Date: Sep 2021
Location: Corona
Posts: 8
Quote:
Originally Posted by CWtheMan View Post
-

We had a 2003 Everest with those wheels and they rere rated at 3042# and 80 PSI.

I'll bet your original tires were LT? Our 2003 only had 32" center to center axle spacing and those LT235/85R16 tires were too tall. In late 2004 Keystone started using LT235/85R16 LRE tires on all 6000# certified GAWRs and went to 34" axle spacing. When loaded to the maximum cargo capacity the LTs were much like the ST235/80R16 LRD tires on our 2003. By early 2006 the ST235/80R16 LRE tires became standard for the 6000# axles.

Welcome to the forum. Here is a reference to use.

https://keystone-rv-dealer-app.cdn.p...ers_manual.pdf
The tires on my 2005 Everest 344J are ST235/85R16E. I believe the treads are separating because there is no spacing between the tires. The tires are now touching each other and I can't drive it now. The tires are 6 years old. There was only 1 inch of spacing between the tires normally, so the axle spacing was probably bad engineering. Should I replace with ST235/80R16G tires. These tires have an O.D. of 30.8" compared to the St235/85R16E tires O.D. of 31.7". The G rated tires have a dual load capacity of 3640 lbs. But , the 110 psi of the G rated tires might be too much for my 3042 lb wheels. That's why I was wondering if anyone has put G rated tires on these type of wheels, and if they had any problems doing so. Any comments?
gascott is offline   Reply With Quote
Old 09-12-2021, 10:45 AM   #7
CWtheMan
Senior Member
 
CWtheMan's Avatar
 
Join Date: Feb 2010
Location: Taylors, SC
Posts: 2,626
Quote:
Originally Posted by gascott View Post
The tires on my 2005 Everest 344J are ST235/85R16E. I believe the treads are separating because there is no spacing between the tires. The tires are now touching each other and I can't drive it now. The tires are 6 years old. There was only 1 inch of spacing between the tires normally, so the axle spacing was probably bad engineering. Should I replace with ST235/80R16G tires. These tires have an O.D. of 30.8" compared to the St235/85R16E tires O.D. of 31.7". The G rated tires have a dual load capacity of 3640 lbs. But , the 110 psi of the G rated tires might be too much for my 3042 lb wheels. That's why I was wondering if anyone has put G rated tires on these type of wheels, and if they had any problems doing so. Any comments?
Dexter Axle publishes in their PDF that the minimum allowance between tires is 1".

What does your vehicle certification label show for OE tire size?
CWtheMan is offline   Reply With Quote
Old 09-13-2021, 08:48 AM   #8
gascott
Junior Member
 
Join Date: Sep 2021
Location: Corona
Posts: 8
My Recreational Vehicle Specification Nameplate states the "Minimum Tire Size & Ply Rating" 235/85R16E. This is my first RV. I purchased it used in 2017. I need to replace tires. I noticed Keystone is using ST235/80R16G tires on their 5th wheel trailers now. I'm thinking the G rated tires would be a better fit for my 14,020 GVWR 5th wheel if my aluminum wheels can support them without cracking. Since my 5th wheel has plenty of ground clearance, would there be any problems using the 1" smaller diameter ST235/80R16G tires?
gascott is offline   Reply With Quote
Old 09-13-2021, 09:04 AM   #9
gascott
Junior Member
 
Join Date: Sep 2021
Location: Corona
Posts: 8
Check thread.
gascott is offline   Reply With Quote
Old 09-13-2021, 09:06 AM   #10
JRTJH
Site Team
 
JRTJH's Avatar
 
Join Date: Mar 2011
Location: Gaylord
Posts: 22,069
Quote:
Originally Posted by gascott View Post
My Recreational Vehicle Specification Nameplate states the "Minimum Tire Size & Ply Rating" 235/85R16E. This is my first RV. I purchased it used in 2017. I need to replace tires. I noticed Keystone is using ST235/80R16G tires on their 5th wheel trailers now. I'm thinking the G rated tires would be a better fit for my 14,020 GVWR 5th wheel if my aluminum wheels can support them without cracking. Since my 5th wheel has plenty of ground clearance, would there be any problems using the 1" smaller diameter ST235/80R16G tires?
With the current wheels ??? NO !!!!!

Your wheels are rated at 3042 pounds at 80PSI. You may still be "loading below 3042 pounds on those old wheels, but airing them up above 80PSI is creating a 'ticking bomb"..... Get new wheels along with your new tires if you're going to upgrade to 14 ply tires. If you "elect to only air the 14 ply tires to 80PSI" then effectively, the upgrade is "nil" since the tires won't support any more weight than the equivalent size 10 ply tire. It's the "air pressure" that determines the load rating" not the number of plies at a lower pressure....
__________________
John



2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
JRTJH is offline   Reply With Quote
Old 09-13-2021, 09:07 AM   #11
gascott
Junior Member
 
Join Date: Sep 2021
Location: Corona
Posts: 8
Quote:
Originally Posted by CWtheMan View Post
Dexter Axle publishes in their PDF that the minimum allowance between tires is 1".

What does your vehicle certification label show for OE tire size?
Check thread.
gascott is offline   Reply With Quote
Old 09-14-2021, 09:52 AM   #12
gascott
Junior Member
 
Join Date: Sep 2021
Location: Corona
Posts: 8
Quote:
Originally Posted by CWtheMan View Post
Dexter Axle publishes in their PDF that the minimum allowance between tires is 1".

What does your vehicle certification label show for OE tire size?
Specification Nameplate states 235/85R16E. I have the original 2005 Keystone Everest brochure and all Everest Models came with LT235/85R16E tires. The axles are 6000 lb axles. My current tires are Road Rider ST-ST235/85R16 Load Range E, Max single load 3640 lbs., manufactured in 2015. Should I replace with LT or ST tires? Are ST tires better?
gascott is offline   Reply With Quote
Old 09-14-2021, 01:09 PM   #13
sourdough
Site Team
 
Join Date: Feb 2014
Location: W. Texas
Posts: 12,939
Replace the wheels and the tires. Your trailer came from a time when the manufacturers routinely specd tires on a trailer that could easily be overloaded. Recent RVIA guidelines have improved that but that doesn't help you. Your tires (OE LT size) and wheels max out at 3042 lbs. giving you a bit over 12k support in both the wheels and tires on a 14k+ trailer - no bueno IMO.

ST tires are built for the use/abuse on a travel trailer. Some folks like LT tires but they do not give the same support as an ST - they are each built for a particular purpose and fill specific, different needs.
__________________
Danny & Susan wife of 54 years
2019 Ram 3500 Laramie CC SB 6.4 4x4 4.10
2020 Montana High Country 331RL
sourdough is online now   Reply With Quote
Old Yesterday, 10:35 PM   #14
CWtheMan
Senior Member
 
CWtheMan's Avatar
 
Join Date: Feb 2010
Location: Taylors, SC
Posts: 2,626
Quote:
Originally Posted by gascott View Post
Specification Nameplate states 235/85R16E. I have the original 2005 Keystone Everest brochure and all Everest Models came with LT235/85R16E tires. The axles are 6000 lb axles. My current tires are Road Rider ST-ST235/85R16 Load Range E, Max single load 3640 lbs., manufactured in 2015. Should I replace with LT or ST tires? Are ST tires better?
When Keystone was using LT235/85R16 tires on 6000# axles the G614 had not yet come on the market. The standard maximum load capacity for your OE tires is 3042# at 80 PSI, leaving very little load capacity in reserve.

Uniroyal and Mission LT tires were commonly used by Keystone. Their failure rate was mimicked by the earlier ST235/80R16 LRD tires used on 6000# axles.

In today’s market there are a few LT235/85R16 LRG tires available. They are the best choice but will require 110 PSI wheels.

We can all speculate a manufacturer's decision for OE tire fitments. However, it's their decision and they saw them as appropriate at the time the vehicles were manufactured.
CWtheMan is offline   Reply With Quote
Reply

Tags
keystone, tires

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
Forum Jump

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by the Keystone RV Company or any of its affiliates in any way. Keystone RV® is a registered trademark of the Keystone RV Company.


All times are GMT -8. The time now is 08:36 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2021, vBulletin Solutions, Inc.