Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-13-2018, 02:19 PM   #1
4 Rivet Member

 
2007 23' Safari SE
Annandale , New Jersey
Join Date: Mar 2017
Posts: 365
TV Tires

A bit of a different question as not entirely pertaining to towing. Am getting a new Tundra and there is a choice between 18in wheels and 20 in wheels. ie 275-55-20 or 275-65-18.

Both selections result in nearly the same over all tire diameters. Of course the 55 have a lower profile.
From a towing perspective - with P Metrics, presumably the 55 and lower profile would be preferable since there is less sidewall for flexing and less sway resulting?


In the same tire, but a 65 vs 55, so taller sidewall, presumably there would be a softer ride, more bump absorption? and when towing more chance of sway?



Then what happens if you go to a LT, E rated tire. Does the sway drop on the 65, ie 18 inch due to a stiffer sidewall? Does the 55 not absorb bumps as well?



So are the appropriate selections to get the best of both, the 55 low profile in a 20inch wheel with P Metric - and the 65 on the 18inch wheel in an LT E rated tire.



And since i spend a fair amount of time off the pavement, will probably be going with an AT tire. Probably the new Continental which I also have on my old Land Cruiser and really like and I believe would be available to me in all the above configurations.


Would appreciate your thoughts.
__________________

Fred L is offline   Reply With Quote
Old 06-13-2018, 02:29 PM   #2
Rivet Master
 
r carl's Avatar
 
Vintage Kin Owner
Lin , Ne
Join Date: Dec 2009
Posts: 2,143
Check the price of replacement tires between the sizes.
__________________

__________________
The higher your expectations the fewer your options.
r carl is offline   Reply With Quote
Old 06-13-2018, 02:52 PM   #3
4 Rivet Member

 
2007 23' Safari SE
Annandale , New Jersey
Join Date: Mar 2017
Posts: 365
Same price for the p-metric ie 275 55 20 vs 2765 18

(may not be an LT in the 55, now that i checked)

Not sure I understand your comment.
Fred L is offline   Reply With Quote
Old 06-13-2018, 08:22 PM   #4
1 Rivet Member
 
2018 25' International
Covington , Ohio
Join Date: Jan 2018
Posts: 5
I have been down that road somewhat. I had OEM P Metric 275 65R18 on our F150 and found them to be a little squirmy so I replaced them with LT 275 65R18 E rated tires and I like them much better. I inflate to 60 lbs and find the handling to be much more precise than the OEM tires. The ride is not at all objectionable to us, although we do feel more firmness in the tires. I spoke with the helpful folks at Canam RV in Ontario before I made this switch and they suggested either the route that I chose or going with 275 55R20s. I would have had to buy new rims if going to the 20” tire so chose to stay with the 18”. I am sure you will get varying opinions on your questions, but I suspect the 18” tire may offer a little softer ride. I liked the idea of a 10 ply tire for hot summer-time traveling.
donrogers is offline   Reply With Quote
Old 06-13-2018, 08:44 PM   #5
1 Rivet Member
 
Currently Looking...
Jax , Florida
Join Date: May 2015
Posts: 18
Similar question so I thought i would jump in here. I have a 2013 F150 5.0 that has Wrangler 265/60R18s and the over all diameter is 30.4. Replacing these with better XL or LT tires only will run about $950.00. I am looking at some 2018 tires and wheels the just came off a new F150. These are Hankook 275-55-20 with a diameter of 32.1. Basically new for $600.00 wheels and rims

My question is with a 2.55 axle ratio how much torque and I losing with this inch plus change in diameter?

We will be towing a 1999 Safari 25
dasher is offline   Reply With Quote
Old 06-14-2018, 08:15 PM   #6
4 Rivet Member

 
2007 23' Safari SE
Annandale , New Jersey
Join Date: Mar 2017
Posts: 365
Not sure on the torque issue, but sounds like a great deal since the tires alone new unmounted are over $150 a piece.
__________________

Fred L is offline   Reply With Quote
Reply


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
Tires...Tires...Tires Bob Thompson Tires 277 07-30-2015 01:30 PM
tires radials or bias ply tires larry b Tires 22 06-27-2010 05:36 PM
Tires ready to blow out! Should Marathon tires be outlawed? marchesi Tires 21 08-22-2009 10:11 AM
Help tires, tires, tires. jimmini Tires 9 10-18-2008 07:54 PM
Tires, anybody ever heard of Specialty Tires of America? lebolewis Tires 3 06-08-2006 04:11 PM


Featured Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:52 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.