Reply
 
Thread Tools Display Modes
Old 11-10-2018, 03:37 AM   #1
Senior Member
 
SilhouettePenny's Avatar
 
Join Date: Mar 2014
Location: in the South, North West Middle Tennessee
Posts: 1,517
17.5 Wheel upgrade, or 19.5?

Considering how cheap the factory tires are on a new unit, if we're going to upgrade the 16" wheel/tire combo why not get 19.5 wheels with 14PR rubber? Same aspect ratio (overall height) just less sidewall to flex. Of course cost is an issue but a blowout can be even more expensive with trailer body repairs. I'm upgrading trailer soon adding an additional 4000 pounds of towing weight and recent forum pics of tire failures have me thinking. What say ye!
__________________
2017 F350 Dually 6.7
2019.5 Hathaway

He who dies with the most tools, wins!
SilhouettePenny is offline   Reply With Quote
Old 11-10-2018, 06:10 AM   #2
Senior Member
 
B and B's Avatar
 
Join Date: Jun 2013
Posts: 10,709
Send a message via AIM to B and B
4000 lbs extra capacity with 19.5? or adding 4000 lbs of water, solar, beverages, meat etc..
B and B is offline   Reply With Quote
Old 11-10-2018, 08:04 AM   #3
Senior Member
 
SilhouettePenny's Avatar
 
Join Date: Mar 2014
Location: in the South, North West Middle Tennessee
Posts: 1,517
Quote:
Originally Posted by B and B View Post
4000 lbs extra capacity with 19.5? or adding 4000 lbs of water, solar, beverages, meat etc..
Adding 4k of trailer...I see your point. Plus water, beverages and her make up/shoes & clothes probably 5000lbs more. Wow, perhaps I should be looking at duallys for the 5th wheel!
__________________
2017 F350 Dually 6.7
2019.5 Hathaway

He who dies with the most tools, wins!
SilhouettePenny is offline   Reply With Quote
Old 11-10-2018, 05:01 PM   #4
Senior Member
 
Join Date: May 2015
Posts: 701
I think the 16" G-rated Sailuns are 14-ply rated for 4,050lbs, so no need to go to bigger wheels.
phillyg is offline   Reply With Quote
Old 11-10-2018, 07:16 PM   #5
Senior Member
 
B and B's Avatar
 
Join Date: Jun 2013
Posts: 10,709
Send a message via AIM to B and B
Quote:
Originally Posted by phillyg View Post
I think the 16" G-rated Sailuns are 14-ply rated for 4,050lbs, so no need to go to bigger wheels.
That is what I have on my Heartland Bighorn at 16k Gross Weight. Run great! Hold the load well.
B and B is offline   Reply With Quote
Old 11-11-2018, 02:53 AM   #6
Fulltime family RVer
 
ependydad's Avatar
 
Join Date: Nov 2011
Posts: 19,905
When I did the upgrade to 17.5” wheels, I jumped to something like 4,800 lbs of tire capacity:
“215/75R17.5 LRJ Continental HTL2 Eco-Plus radial tire rated at 4,805 pounds with a 75 mph speed rating.”

I can’t imagine that you need to consider 19.5” wheels.

I also upgraded rigs. The new camper came with the same G-rated Sailuns as mentioned above. With 3 axles and a 21k GVWR, I’m comfortably within specs on tires and don’t feel the need to upgrade to 17.5” wheels again.
__________________
2018 Ram 3500 DRW/crew cab/long bed/4x4/4.10 gears pulling a 2017 Spartan 1245 by Prime Time
Checkout my site for RVing tips, tricks, and info | My family and I have fulltimed since June 2015
ependydad is offline   Reply With Quote
Old 11-11-2018, 01:30 PM   #7
Senior Member
 
mbbutler's Avatar
 
Join Date: Apr 2016
Posts: 296
Quote:
Originally Posted by phillyg View Post
I think the 16" G-rated Sailuns are 14-ply rated for 4,050lbs, so no need to go to bigger wheels.
X2
mbbutler is offline   Reply With Quote
Old 11-11-2018, 04:21 PM   #8
Senior Member
 
SilhouettePenny's Avatar
 
Join Date: Mar 2014
Location: in the South, North West Middle Tennessee
Posts: 1,517
Thanks for all the input, 17.5's would probably be a sufficient upgrade for an 18k 5er. I got stars in my eyes when researching BoarWheel.com. Go big or go home got in my mind and I needed your counseling to bring me back to earth.
__________________
2017 F350 Dually 6.7
2019.5 Hathaway

He who dies with the most tools, wins!
SilhouettePenny is offline   Reply With Quote
Old 11-11-2018, 08:19 PM   #9
Junior Member
 
dcglovier's Avatar
 
Join Date: Sep 2010
Location: Maryland
Posts: 9
If you upgrade to the Sailun S637 G rated 110psi tire from a E rated 80 psi tire, will the 80psi stock wheels handle the 110psi?
dcglovier is offline   Reply With Quote
Old 11-11-2018, 08:29 PM   #10
Senior Member
 
SilhouettePenny's Avatar
 
Join Date: Mar 2014
Location: in the South, North West Middle Tennessee
Posts: 1,517
Quote:
Originally Posted by dcglovier View Post
....will the 80psi stock wheels handle the 110psi?
....and now we're back to the 19.5 discussion again. Heavy duty tires need HD wheels. Take a look at Boar's Cruiser 67 and try to talk me out of it again, please.
__________________
2017 F350 Dually 6.7
2019.5 Hathaway

He who dies with the most tools, wins!
SilhouettePenny is offline   Reply With Quote
Old 11-11-2018, 09:01 PM   #11
Senior Member
 
keith52's Avatar
 
Join Date: Aug 2015
Location: Springfield, MO
Posts: 446
Quote:
Originally Posted by dcglovier View Post
If you upgrade to the Sailun S637 G rated 110psi tire from a E rated 80 psi tire, will the 80psi stock wheels handle the 110psi?
Short answer....NO
__________________
2014 Chevy CC Duramax 4X4 Long Bed
2017 Cedar Creek 36CKTS
MORryde independent suspension with disc brakes
keith52 is offline   Reply With Quote
Old 11-11-2018, 09:58 PM   #12
Blog: RVroadtripper.com
 
hbillsmith's Avatar
 
Join Date: Jul 2012
Location: Near Dallas Texas
Posts: 986
Quote:
Originally Posted by dcglovier View Post
If you upgrade to the Sailun S637 G rated 110psi tire from a E rated 80 psi tire, will the 80psi stock wheels handle the 110psi?
I made several calls to both Sailun and the wheel mfg for my rig (HiSpec).

Both agreed that the Sailun ST 14ply 16" 110psi tire could be mounted on the 80psi wheel but the catch is you should run them at 80psi. Sailun lists the same tire with different load range depending on whether you run 80psi or 110psi.

Also you should consider tire weight. The Sailun is several pounds heavier than the Maxxis. As stated above and elsewhere, their have been instances reported where changing to the heavier tires, even with perfect fit and clearance, users suffered cracked spiffy looking aluminum wheels.

I'm on my 3rd set of Maxxis 8008 on HiSpec 16 and no issues. We've towed 45,000 miles in 3 years and camped in 47 states.
hbillsmith is offline   Reply With Quote
Old 11-12-2018, 12:16 AM   #13
Senior Member
 
SilhouettePenny's Avatar
 
Join Date: Mar 2014
Location: in the South, North West Middle Tennessee
Posts: 1,517
Quote:
Originally Posted by hbillsmith View Post
.....their have been instances reported where changing to the heavier tires, even with perfect fit and clearance, users suffered cracked spiffy looking aluminum wheels.
Thank you sir, that is exactly why I started this discussion. Other RV maintenance forums have indicated Hi-Spec spoke wheel failure while using heavier tires and/or higher pressure. I'm not suggesting that the wheel blew up, but significant damage occurred when the tire went flat.

Just researching the best possible options to help keep my heavy rig out of the body shop. Thanks again for all your input. I really want those Boar wheels.
__________________
2017 F350 Dually 6.7
2019.5 Hathaway

He who dies with the most tools, wins!
SilhouettePenny is offline   Reply With Quote
Old 11-12-2018, 02:19 PM   #14
Junior Member
 
dcglovier's Avatar
 
Join Date: Sep 2010
Location: Maryland
Posts: 9
Sailun ST 14ply

Quote:
Originally Posted by hbillsmith View Post
I made several calls to both Sailun and the wheel mfg for my rig (HiSpec).

Both agreed that the Sailun ST 14ply 16" 110psi tire could be mounted on the 80psi wheel but the catch is you should run them at 80psi. Sailun lists the same tire with different load range depending on whether you run 80psi or 110psi.

Also you should consider tire weight. The Sailun is several pounds heavier than the Maxxis. As stated above and elsewhere, their have been instances reported where changing to the heavier tires, even with perfect fit and clearance, users suffered cracked spiffy looking aluminum wheels.

I'm on my 3rd set of Maxxis 8008 on HiSpec 16 and no issues. We've towed 45,000 miles in 3 years and camped in 47 states.
Yes you can run the Sailun 110psi at 80psi but that is obviously severely underinflated. So is the only choice to stay with an E rated tire or buy new wheels?
dcglovier is offline   Reply With Quote
Old 11-12-2018, 04:26 PM   #15
Senior Member
 
Join Date: Jul 2009
Location: Warsaw,NC
Posts: 7,184
Let’s see is the tires supposed to carry the total weight of the camper
spock123 is offline   Reply With Quote
Old 11-13-2018, 11:05 PM   #16
Senior Member
 
Join Date: Nov 2012
Posts: 414
Quote:
Originally Posted by phillyg View Post
I think the 16" G-rated Sailuns are 14-ply rated for 4,050lbs, so no need to go to bigger wheels.
Yes, the Sailun ST235/80R16 is rated at 4080 lb. The ST235/85R16 is rated at a whopping 4400 lb.

So that's what I use. They are the best I have used so far.

http://gosailun.com/MRT/Tire/S637T
Slow Moon is offline   Reply With Quote
Old 11-13-2018, 11:20 PM   #17
Junior Member
 
dcglovier's Avatar
 
Join Date: Sep 2010
Location: Maryland
Posts: 9
Quote:
Originally Posted by Slow Moon View Post
Yes, the Sailun ST235/80R16 is rated at 4080 lb. The ST235/85R16 is rated at a whopping 4400 lb.

So that's what I use. They are the best I have used so far.

Sailun Commercial Truck Tires: S637T HD ST Trailer
Did your trailer come with G rated 110psi tires?
dcglovier is offline   Reply With Quote
Old 11-16-2018, 07:59 AM   #18
Senior Member
 
SilhouettePenny's Avatar
 
Join Date: Mar 2014
Location: in the South, North West Middle Tennessee
Posts: 1,517
Quote:
Originally Posted by dcglovier View Post
Did your trailer come with G rated 110psi tires?
Yes sir, the Hathaway has G rated 110 PSI rubber on 16" wheels, however, the sidewall flex is substantially less on the G rated 19.5 wheels.
__________________
2017 F350 Dually 6.7
2019.5 Hathaway

He who dies with the most tools, wins!
SilhouettePenny is offline   Reply With Quote
Old 11-17-2018, 09:38 PM   #19
Senior Member
 
Join Date: Jul 2009
Location: Warsaw,NC
Posts: 7,184
What brand of tires did your Cedar Creek come with? Sailun or Westlake
spock123 is offline   Reply With Quote
Old 11-19-2018, 07:58 PM   #20
Senior Member
 
SilhouettePenny's Avatar
 
Join Date: Mar 2014
Location: in the South, North West Middle Tennessee
Posts: 1,517
Quote:
Originally Posted by spock123 View Post
What brand of tires did your Cedar Creek come with? Sailun or Westlake
Westlake, didn't have a tire option when we ordered.
__________________
2017 F350 Dually 6.7
2019.5 Hathaway

He who dies with the most tools, wins!
SilhouettePenny is offline   Reply With Quote
Reply

Tags
upgrade, wheel

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 Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.



All times are GMT -5. The time now is 06:34 AM.