Different Tire Width on Escape 21 - Escape Trailer Owners Community

Go Back   Escape Trailer Owners Community > Escape Tech > Problem Solving | Owners helping each other
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 06-05-2016, 09:47 AM   #1
Senior Member
 
fudge_brownie's Avatar
 
Join Date: Nov 2008
Location: Janesville, WI, Wisconsin
Trailer: Escape 19 (sold) Escape 21 2014
Posts: 1,226
Different Tire Width on Escape 21

Here is the problem and suggested solutions

Quote:
Originally Posted by fudge_brownie

One odd thing I discovered is the wheels are set apart different on each side. Once the wedges are adjusted properly I have to make sure to use the correct wedge on the proper side. Not the fault of the wedge but how the axles are aligned. Not noticing anything unusual on tire wear, and not sure how they are supposed to be aligned.


Quote:
That would worry me a bit. Although I'm wondering if the geometry changes depending on the load on each wheel. If the area is uneven that might cause the difference. Otherwise I think that I'd be under there with a tape measure, measuring the distance between the axles on each side.
Ron


Quote:
It's hard to imagine how a trailer with the axles installed so far out of parallel that it would be noticeable in tire spacing when using this sort of brake (or "chock") could pull down the road straight and without excessive tire wear.

The Torflex suspension has quite short arms, so vertical travel causes significant fore-aft movement as well. The leading and trailing suspensions should match, so that the spacing between tires stays constant, but an uneven site could make the two sides mismatch... but from Paul's description this seems to be consistent - one side always tighter than the other. Offhand the only two explanations I can think of for this would be a twisted frame (same effect as an uneven site but again, would need to be significantly twisted) or mismatched tire diameters.
Brian B-P
__________________

__________________
Paul and Janet Braun
2003 Toyota 4Runner V8 now 2012 Toyota Sequoia V8
Escape 19' 2010 now 2014 Escape 21'
fudge_brownie is offline   Reply With Quote
Old 06-05-2016, 09:53 AM   #2
Senior Member
 
thoer's Avatar
 
Join Date: Oct 2009
Location: Galesville, Wisconsin
Trailer: 2017 21 "Blue II" & 2017 Highlander XLE (previously 2010 17B "Blue" & 2008 Tacoma)
Posts: 3,961
Paul have you measured this while sitting as level as on a hard surface like concrete or asphalt?
__________________

__________________
Eric (and Mary who is in no way responsible for anything stupid I post)

SAE Towing Standard "Beware of false knowledge; it is more dangerous than ignorance." George Bernard Shaw
thoer is offline   Reply With Quote
Old 06-05-2016, 09:54 AM   #3
Senior Member
 
fudge_brownie's Avatar
 
Join Date: Nov 2008
Location: Janesville, WI, Wisconsin
Trailer: Escape 19 (sold) Escape 21 2014
Posts: 1,226
I just came out of storage and the first thing I did was measure the distance between axles. Very close numbers on each side, my measurements were not precise but enough to tell me the axles were spaced properly.

Moved on to checking the tire sizes on these, the original supplied tires from Escape. There is a difference.

The driver side has ST225/75R15 and the curb side is ST205/85R15. Brian had it correct, the tire widths are different. The sizes are matched on each side.

Checked again and no sign of unusual tire wear, we have 8,000 miles on the trailer and original tires.

Is this any cause for concern?
__________________
Paul and Janet Braun
2003 Toyota 4Runner V8 now 2012 Toyota Sequoia V8
Escape 19' 2010 now 2014 Escape 21'
fudge_brownie is offline   Reply With Quote
Old 06-05-2016, 09:58 AM   #4
Senior Member
 
thoer's Avatar
 
Join Date: Oct 2009
Location: Galesville, Wisconsin
Trailer: 2017 21 "Blue II" & 2017 Highlander XLE (previously 2010 17B "Blue" & 2008 Tacoma)
Posts: 3,961
Wow - that must have been a mistake at the factory to put on mismatched tires. Probably they were sent from the supplier incorrectly and not noticed during the build. At least they are the same on the pairs. The 205 would have slightly less weight capacity that the 225 I think, but either should be plenty on a 21.

I would contact Reace though - he should at least know about this.
__________________
Eric (and Mary who is in no way responsible for anything stupid I post)

SAE Towing Standard "Beware of false knowledge; it is more dangerous than ignorance." George Bernard Shaw
thoer is offline   Reply With Quote
Old 06-05-2016, 10:14 AM   #5
Senior Member
 
Join Date: Aug 2013
Location: Naples, Florida
Trailer: New 21 Escape (not classic)10/16 Sold Lil Snoozy 7/16
Posts: 308
21 for Florida

I would definitely get a hold of the factory .Check your spare and see what that size is and swap it out and then get same size as the others and keep the mismatch for a spare or ask ETI what to do with it ? Jim
jennykatz is offline   Reply With Quote
Old 06-05-2016, 10:18 AM   #6
Senior Member
 
azjack's Avatar
 
Join Date: Nov 2010
Location: Tucson, AZ, Arizona
Trailer: gone, 19 and 21
Posts: 472
different tires?

I had to go check even though I'm sure I would have noticed if I had two different sizes. They are all four 205's.
When I put in the x-chocks I usually have to close up at least one from the setting when removed, I guess it has to do with the suspension at different positions or the fact that the trailer was twisted into the spot. Many miles on the Marathons and no wear shows, must be Ok.
Jack
azjack is offline   Reply With Quote
Old 06-05-2016, 10:38 AM   #7
Site Team
 
cpaharley2008's Avatar
 
Join Date: Jun 2010
Location: York, Pennsylvania
Trailer: 2016 2ndGen Escape 19' PRAIRIE SCHOONER pulled by 2014 Ram Hemi/8sp
Posts: 13,669
So the 225's are a mistake?
__________________
Jim
The two most important days in your life are the day you were born and the day you find out why………..Mark Twain
cpaharley2008 is offline   Reply With Quote
Old 06-05-2016, 12:38 PM   #8
Senior Member
 
fudge_brownie's Avatar
 
Join Date: Nov 2008
Location: Janesville, WI, Wisconsin
Trailer: Escape 19 (sold) Escape 21 2014
Posts: 1,226
I checked the spare and it is a 205 width. Does 3 out of 5 being 205 width mean that was what was standard?
__________________
Paul and Janet Braun
2003 Toyota 4Runner V8 now 2012 Toyota Sequoia V8
Escape 19' 2010 now 2014 Escape 21'
fudge_brownie is offline   Reply With Quote
Old 06-05-2016, 01:38 PM   #9
Senior Member
 
Iowa Dave's Avatar
 
Join Date: Aug 2015
Location: Eastern Iowa, Iowa
Trailer: 2013 Escape 21 pulled by a 2010 Highlander Anderson hitch,
Posts: 2,382
Paul, that's a pretty strange discovery.
The only thing that would concern me and I'm not sure it even should is whether or not the roll out on the two different width tires is the same. Should be Very close. Roll out used to be critical side to side when we raced stock cars with locked rear ends but on free spinning axles I'm not sure it matters. I would contact Reace for sure. I would also check the clearance in the wheel well especially if the 205's were the intended tire. If you pancake the trailer on a humpy bridge approach by accident you wouldn't want tire bulge to bite the inner or outer fiberglass.
Dave
Iowa Dave is offline   Reply With Quote
Old 06-05-2016, 02:30 PM   #10
Senior Member
 
Join Date: Dec 2012
Location: Edmonton, Alberta
Trailer: 1979 Boler B1700
Posts: 9,052
Quote:
Originally Posted by fudge_brownie View Post
I checked the spare and it is a 205 width. Does 3 out of 5 being 205 width mean that was what was standard?
Neither one is the published Escape standard of ST205/75R15. There were smaller sizes earlier (on smaller models), and at one point the 5.0 had larger tires (ST215/75R15) because it had the highest axle load, but I've never heard of a 225 mm width (the ST225/75R15) or 85 aspect ratio (ST205/85R15) used on an Escape. Of course, I'm only going on published specs, sizes mentioned in forum discussions, and the ones I've seen.

ST225/75R15 is a readily available size, just not normally used by Escape.
ST205/85R15 is an unusual size. The only ST tires commonly found in 85 aspect ratio are for 16" wheels. I don't know where I would even find a 205/85R15, ST or otherwise. Carlisle (Escape's current tire supplier) doesn't even list this size in their catalog.

Tire size isn't discussed very often in this forum, compared to other forums, because the stock Escape size works fine and is readily available; most people don't find a reason to consider other sizes.

Quote:
Originally Posted by Iowa Dave View Post
The only thing that would concern me and I'm not sure it even should is whether or not the roll out on the two different width tires is the same. Should be Very close. Roll out used to be critical side to side when we raced stock cars with locked rear ends but on free spinning axles I'm not sure it matters.
"Roll out" is effective tire circumference, measured by how far the tire rolls (while carrying load) per rotation of the tire. It depends significantly on load and inflation pressure. Major tire manufacturers publish loaded radius and tire revolutions per kilometre (or mile) for this purpose, but for Special Trailer tires there usually are only more basic specifications provided.

With idler (free spinning, no drive shaft) wheels this doesn't matter, but it would still be a concern if the diameter were significantly different, as the trailer wouldn't even sit level. These two sizes are very close to identical - the 205/85R15 are nominally 5 mm larger in diameter, but tread depth differences could easily be larger than that. The slight difference probably makes much more different to the fit of the chocks than to the behaviour of the trailer.

I would be more concerned about significantly different width, causing a different amount of drag and different response to lateral loads. It could easily cause a greater tendency to sway.


At least they're all radials. I rented a U-Haul trailer once and found that it had three bias-ply tires and one radial.
__________________

Brian B-P 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






» Virginia Campgrounds

Reviews provided by



All times are GMT -5. The time now is 03:22 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 Social Knowledge, LLC All Rights Reserved.