Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test 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 02-16-2020, 09:32 AM   #1
michaelrc51
Member
 
Join Date: Dec 2019
Location: Cream Ridge
Posts: 43
17.5" wheels and tires

I just purchased a 2014 Raptor 300mp and I want to put wheels and tires on it that will alleviate any worries as far as blowouts and load range issues. So, I've come across 17.5" commercial wheels and tires and they are expensive but honestly I believe worth it if it will take any concern out of my mind and they should last a long time.

My concern is about the stiffness. I know the wheels and tires will be well over what the axles are rated at. I have looked at a wheel with a Sailun tire and they're a little bit cheaper but they're only rated at 62mph. While I'm not going to be setting land speed records while towing the fifth wheel, I would like to have a speed rating over 70mph to accommodate for some extra room. My estimate is 65-70 mph.

So my question is would anyone else be concerned with the sidewall stiffness? In your opinion, would the ultra stiff sidewall tires cause frame issues or issues with anything else?
michaelrc51 is offline   Reply With Quote
Old 02-16-2020, 09:52 AM   #2
flybouy
Site Team
 
Join Date: Oct 2011
Location: Joppa, MD
Posts: 11,695
What size Sailun tires are you looking at? The one's I've seen are L rated (75 m.p.h.)
__________________
Marshall
2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel
flybouy is offline   Reply With Quote
Old 02-16-2020, 10:01 AM   #3
CWtheMan
Senior Member
 
CWtheMan's Avatar
 
Join Date: Feb 2010
Location: Taylors, SC
Posts: 3,031
Quote:
Originally Posted by michaelrc51 View Post
I just purchased a 2014 Raptor 300mp and I want to put wheels and tires on it that will alleviate any worries as far as blowouts and load range issues. So, I've come across 17.5" commercial wheels and tires and they are expensive but honestly I believe worth it if it will take any concern out of my mind and they should last a long time.

My concern is about the stiffness. I know the wheels and tires will be well over what the axles are rated at. I have looked at a wheel with a Sailun tire and they're a little bit cheaper but they're only rated at 62mph. While I'm not going to be setting land speed records while towing the fifth wheel, I would like to have a speed rating over 70mph to accommodate for some extra room. My estimate is 65-70 mph.

So my question is would anyone else be concerned with the sidewall stiffness? In your opinion, would the ultra stiff sidewall tires cause frame issues or issues with anything else?
The Sailun truck or trailer tires both have a speed rating of 75 MPH. Here are a couple of examples.

https://sailuntire.ca/en/plt/tires/S637st/
http://www.sailuntyres.com.au/images2/737/737.pdf
CWtheMan is offline   Reply With Quote
Old 02-16-2020, 10:20 AM   #4
michaelrc51
Member
 
Join Date: Dec 2019
Location: Cream Ridge
Posts: 43
Quote:
Originally Posted by flybouy View Post
What size Sailun tires are you looking at? The one's I've seen are L rated (75 m.p.h.)
This is the one I was looking at. Of course, I can't find it now but I found that it was 62mph speed rating.

https://trailersetgo.com/store/sailu...minum-assembly
michaelrc51 is offline   Reply With Quote
Old 02-16-2020, 10:23 AM   #5
michaelrc51
Member
 
Join Date: Dec 2019
Location: Cream Ridge
Posts: 43
Quote:
Originally Posted by CWtheMan View Post
The Sailun truck or trailer tires both have a speed rating of 75 MPH. Here are a couple of examples.

https://sailuntire.ca/en/plt/tires/S637st/
http://www.sailuntyres.com.au/images2/737/737.pdf
I was looking at these, which I don't even see on Sailun's site anymore.
-EDIT---I see them now, they're under "regional All Position" not "HD Trailer"
Also, looks like I was wrong about the speed rating on them!

https://trailersetgo.com/store/sailu...minum-assembly


These are the other alternative, or maybe why I am looking for opinions on how the super load range tires/ wheels would affect the structure or not.
https://www.boarwheel.com/17-5-cruis...5-r16-to-17-5/

What are everyone's thoughts about using either one of these?
michaelrc51 is offline   Reply With Quote
Old 02-16-2020, 12:25 PM   #6
CWtheMan
Senior Member
 
CWtheMan's Avatar
 
Join Date: Feb 2010
Location: Taylors, SC
Posts: 3,031
Quote:
Originally Posted by michaelrc51 View Post
I was looking at these, which I don't even see on Sailun's site anymore.
-EDIT---I see them now, they're under "regional All Position" not "HD Trailer"
Also, looks like I was wrong about the speed rating on them!

https://trailersetgo.com/store/sailu...minum-assembly


These are the other alternative, or maybe why I am looking for opinions on how the super load range tires/ wheels would affect the structure or not.
https://www.boarwheel.com/17-5-cruis...5-r16-to-17-5/

What are everyone's thoughts about using either one of these?
Do you have 1/2" or 9/16" lug bolts?
CWtheMan is offline   Reply With Quote
Old 02-16-2020, 01:24 PM   #7
michaelrc51
Member
 
Join Date: Dec 2019
Location: Cream Ridge
Posts: 43
Quote:
Originally Posted by CWtheMan View Post
Do you have 1/2" or 9/16" lug bolts?
Not 100% sure as of now. I'll pull one and measure it up, but I'm thinking 9/16"
michaelrc51 is offline   Reply With Quote
Old 02-17-2020, 06:24 AM   #8
michaelrc51
Member
 
Join Date: Dec 2019
Location: Cream Ridge
Posts: 43
Anyone else with feedback as to if the 17.5” or 19.5” wheel/ tire combo will be to stiff for my fifth wheel?
__________________
2014 Raptor 300MP
michaelrc51 is offline   Reply With Quote
Old 02-27-2020, 03:24 PM   #9
michaelrc51
Member
 
Join Date: Dec 2019
Location: Cream Ridge
Posts: 43
Quote:
Originally Posted by CWtheMan View Post
Do you have 1/2" or 9/16" lug bolts?


They are 1/2”-20

Looks like that will limit my choices.
__________________
2014 Raptor 300MP
michaelrc51 is offline   Reply With Quote
Reply

Tags
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

» Featured Campgrounds

Reviews provided by

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 07:33 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.