Reply
 
Thread Tools Display Modes
Old 04-28-2018, 07:16 AM   #1
Senior Member
 
BigH's Avatar
 
Join Date: Aug 2017
Location: Saint Paul, MN
Posts: 271
Observations after swapping out the China bombs

I know there is a ton of threads related to this topic but I have a couple questions and some observations on the tires I swapped out yesterday.

My trailer came with Castle Rock 225 75 R15's load D and after researching on the internet I decided I wasn't willing to travel without swapping them out. I went with the Goodyear Endurance and upped to load E.

Observations first:

The rims/tires were not balanced.

The tires were just barely rated for the max trailer gross. I knew this from checking before our first trip last year and it bugged me.

I noticed on the trailer that the tire's contact patch had a curve to them leaving the center depressed somewhat. Off the trailer with the tire still inflated on the rim you could see the center was considerably recessed when compared with the edges. Surprisingly the flashing on the center of the tire was still visible with the edges showing normal use on all four tires. Considering the tires have always had max pressure and the camper was near max load...I found this a little disturbing.

I had planned to sell the Castle Rocks on CL but I couldn't do it after inspecting them close up.

The Questions:

I've gone through some tires in my days and it never crossed my mind not to balance anything that was going to do highway speeds. Is not balancing a normal or accepted practice with RV's?

Anyone else seeing tires that the center is not making hard contact with the road?

BTW I sleep better last night...
__________________

__________________
17 Chevy 2500 DC Long box Gasser Z71 4.10
18 Vengeance 28V
BigH is offline   Reply With Quote
Old 04-28-2018, 07:50 AM   #2
Senior Member
 
Join Date: Feb 2016
Location: Texas
Posts: 298
I posted about this in another thread and some member came back telling me I did not have a certified air pressure gauge. Regardless, yes, I had the same experience. From what I saw, the center of the tires was collapsing inward under the load and the tire was riding on the edges. I can assure you, regardless of my pressure gauge, the tires were not under inflated.

I went from a C load rating to a D. I also went with a radial tire. Again, I posted earlier that I could tell the difference in the rolling resistance and some member just felt like I must be off of my rocker as I did not do any real test to prove that. Well, no I did not do a real test, but again I know what I felt and I no one will convince me that my rolling resistance was not improved by a good set of tires. I could absolutely feel the difference.

So, no need for anyone to post and tell me I have no idea what I am talking about as that has already been done and it did not change my mind one bit.
__________________

__________________
AS Rabbit
2016 Wildwood 195BH
2009 Silverado 1500
Asrabbit is offline   Reply With Quote
Old 04-28-2018, 07:58 AM   #3
DDC
Senior Member
 
DDC's Avatar
 
Join Date: Sep 2011
Location: Komoka Ontario
Posts: 2,596
I’m a retired mechanic and I believe it should be mandatory that all tires on any vehicle capable of highway speeds and this should include attachments such as RV trailers and unility trailers should all be balanced.
__________________
"Well that didn't go as expected"
2015 Chev 2500HD Highcountry Duramax
Cedar Creek Silverback 33IK
Donald&Casey cairn terrier
Rest in Peace Mary my darling wife.
Scottish by birth Canadian by time.
DDC is offline   Reply With Quote
Old 04-28-2018, 08:49 AM   #4
Member
 
Join Date: Aug 2017
Posts: 83
Quote:
Originally Posted by DDC View Post
Iím a retired mechanic and I believe it should be mandatory that all tires on any vehicle capable of highway speeds and this should include attachments such as RV trailers and unility trailers should all be balanced.


+1
AZ Pete is offline   Reply With Quote
Old 04-28-2018, 10:43 AM   #5
Senior Member
 
BigH's Avatar
 
Join Date: Aug 2017
Location: Saint Paul, MN
Posts: 271
Quote:
Originally Posted by DDC View Post
Iím a retired mechanic and I believe it should be mandatory that all tires on any vehicle capable of highway speeds and this should include attachments such as RV trailers and unility trailers should all be balanced.
Completely agree..

The tire store that put on my tires asked me if I wanted them balanced. I said yes of course but in my head I was thinking: Duh! -Considering they asked and the sets were not balanced from the factory maybe it is a common practice? Like I said, it never occurred to me they wouldn't be balanced.

Not that it really matters now but did my trailer somehow get the wheel balancing skipped or is it common to not have them balanced from the factory?
__________________
17 Chevy 2500 DC Long box Gasser Z71 4.10
18 Vengeance 28V
BigH is offline   Reply With Quote
Old 04-28-2018, 10:45 AM   #6
Aging Junior Member
 
Jeff95814's Avatar
 
Join Date: Jul 2014
Location: Sacramento
Posts: 44
Quote:
Originally Posted by AZ Pete View Post
+1
X2
__________________
2015 Wildcat Maxx 242RLX
2012 F250 6.7L Power Stroke
B&W Companion Slider
Jeff95814 is offline   Reply With Quote
Old 04-28-2018, 11:48 AM   #7
Member
 
Join Date: Jul 2016
Location: California
Posts: 43
My china bombs weren’t balanced either. I replaced with Goodyear endurance. (After a blow out) They did not balance them either. I called Goodyear and they stated they do not have to be. I took it back and had them balanced anyway!
Tablack is offline   Reply With Quote
Old 04-28-2018, 12:11 PM   #8
Senior Member
 
jk510's Avatar
 
Join Date: Dec 2009
Posts: 232
I always figured the reason the manufacturers don't balance the tires on trailers is that they feel since nobody is riding in them that it wouldn't matter, nobody would notice.
__________________
Joel K
Southeast AZ
2013 Coachman Mirada 29DSSE
jk510 is offline   Reply With Quote
Old 04-28-2018, 12:31 PM   #9
Senior Member
 
Join Date: Nov 2017
Posts: 134
I just installed new Endurance tires on my 233s, replacing the original Constancy China bombs and can offer my observations:
The original tires were not balanced. I own my own tire mounting/spin balancing machines and the new Endurance tires were far more difficult to balance than any passenger car tire I have ever balanced, requiring more weights and multiple spins. However they all ultimately balanced out to zero. I spun two of the china bombs before dismounting and they would have required a similar amount of weight. There were balanced with a lug centric adapter by the way. I attribute the amount of weights to them being a heavy tire and not manufactured to as exacting balance specs as a car tire.

Test drive: WAY better feel than the originals. Seems to be less rolling resistance and sway/side to side movement is all but gone. Very smokth and vibration free.
My17Ram is offline   Reply With Quote
Old 04-28-2018, 01:30 PM   #10
Senior Member
 
mjones12's Avatar
 
Join Date: Sep 2009
Location: Lexington, NC
Posts: 2,163
Quote:
Originally Posted by Tablack View Post
My china bombs werenít balanced either. I replaced with Goodyear endurance. (After a blow out) They did not balance them either. I called Goodyear and they stated they do not have to be. I took it back and had them balanced anyway!
I called the Maxxis factory, and they also said no need to balance them.
__________________

__________________
2018 Coachmen Apex 249 RBS
2010 Silverado LT 5.3 V8


The world is a great book, of which those who never stir from home
read only a page. - St. Augustine
mjones12 is online now   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



» 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.




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 03:01 PM.