IOWASTROKER
rocky mountians
Senior Member
Joined: 11/20/2009
View Profile
 Offline
|
Can only find the XPS Rib in the 235/85R16 size, which is an inch larger diameter, which leads me to believe they will rub, particularly when they flex any when you hit a hole at, say, a bridge approach. My OEM tire is TowMax 235/80/r16. THX in advance.
|
kedanie
Albuquerque, NM
Senior Member
Joined: 07/24/2009
View Profile
Good Sam RV Club Member
Offline
|
The 235-85-16 XPS Rib is about 1 inch larger in diameter that the 235-80-16 tire. That is only 1/2 inch on each side. So the tire will only extend into the wheel well an additional 1/2 inch, the other 1/2 inch is below the axle effectively lifting the trailer 1/2 inch. The only thing you need to worry about is the clearance between the tires. The 1/2 inch extra on each tire will decrease the clearance between tires by 1 inch. You need a minimum of 1 inch clearance when all is said and done. Let's say you currently have 3 inches between tires, you would end up at 2 inches and be just fine.
The other option with the XPS Rib tire is to go to the 245-75-16 and it would match the diameter if the 235-80-16 tires you want to replace.
Good luck with your new tires. XPS Ribs are expensive but worth the money. That is what I had on the 5th wheel that preceded our signature MH.
Keith
Keith, Gloria & Charlie(Spoiled Rotten Boston Terrier)
2010 Damon Astoria 3470
2012 Jeep Grand Cherokee Overland
USAF 1968-1976 Viet Nam Veteran
|
allcool
sFL Glamis PHX
Full Member
Joined: 10/22/2011
View Profile
Offline
|
Good choice in tire. I wanted those. The ribs are a total steel carcass, bullet proof.
But... I went with the commercial TA 235/85 16.They seem stout enough for my purpose. Also had the 235/80 16e to start.
The new 235/85 16E tires fit perfect on my WW triple axle. Plenty of clearance. Got to be 8-10" at least between tires. They tow like a dream. And I like the slightly higher profile. Plenty of room up top for the extra 1/2" on the WW.
I'd be really surprised if 235/85 16e did not fit great on any rig that came with 235/80 16e...
jmo
You are going to like these LT tires...
2007 WW FSW3200
RZRS k&t Turbo
2 LT500
1 Lt500 hybrid
|
lincster
Mesa Az
Senior Member
Joined: 01/27/2003
View Profile
Offline
|
235 Ribs will fit just fine.
You are comparing ST tire size to LT tire size, apples to oranges.
Get the 235, you will love them.
2012 F350 PSD CC 4X4 Dually to pull 2006 LE3905
Lincsters Truck/Trailer
Lincsters Rail
|
OldGreaser
South Texas
Senior Member
Joined: 02/13/2010
View Profile
Offline
|
The 235x85-16R will not fit my triple axle. Lack of clearance between tires on axle 2 & 3; presently less than 1 inch. I absolutely know this because I have one for my spare. No way will two work.
When I upgrade to LT's it will be the 245x75-16R's which are almost a match for my 235x80-16R ST's.
|
|
|
Flattman
Arizona
Full Member
Joined: 05/10/2010
View Profile
Good Sam RV Club Member
Offline
|
IOWASTROKER wrote:Can only find the XPS Rib in the 235/85R16 size, which is an inch larger diameter, which leads me to believe they will rub, particularly when they flex any when you hit a hole at, say, a bridge approach. My OEM tire is TowMax 235/80/r16. THX in advance.
I had 235/80R16 factory China bombs on my triple axle KZ Inferno and changed out to the 235/85R16 XPS Ribs in March. I have three trips to Glamis on them since and have had no clearance issues between axles.
Dodge Ram 6.7L 4X4 Quadcab W/Reese Slider
K-Z Inferno 3905 w/TrailAir
Carson 20' Enclosed Trailer
Sandwinder LTX Pro LS2 Sandrail
Yamaha Raptors
Honda TRX 450R
|
OldGreaser
South Texas
Senior Member
Joined: 02/13/2010
View Profile
Offline
|
Looks like some trailers will fit them and some won't. You could take a careful measurement of your axle spacing and work out your clearance using this site:
http://www.miata.net/garage/tirecalc.html
Paste it into your browser & you can plug in different tire sizes to get diameter.
|
mapguy
Puget Sound
Senior Member
Joined: 09/02/2007
View Profile
Offline
|
You need 1" clearance between tires -this is directly from Dexter Axle Documentation. Also need about 3" of bump clearance, top /top sides, for full axle articulation at full load.
The LT245/75R16 LR E are nearly the same diameter dimension as ST235/80R16 but have a wider section width. Only issue going this way is wheel width should be 6.5 inches for the Lt245/75R16 tire.
Might consider the Bridgestone Duravis R250 or M895 instead of XPS rib. These are usually $50 or more cheaper per tire than the XPS but still a steel sidewall/steel tread tire.
|
r1Mk
Modesto
Senior Member
Joined: 04/16/2007
View Profile
Offline
|
lincster wrote:235 Ribs will fit just fine.
You are comparing ST tire size to LT tire size, apples to oranges.
Get the 235, you will love them.
Lincster, are you saying ST and LT tires sizes are different even if they have the same exact numbers??
'06 GMC 2500HD D/A 4X4
'12 Fuzion 302
Winter Arctic Cat 900 1M, Polaris 700 RMK, Polaris 550 RMK
Summer Honda 300 EX, Yamaha 80, Polaris 50
|
BobWanderer
Perris,Calif,USA
Senior Member
Joined: 10/19/2004
View Profile
Offline
|
r1Mk wrote:lincster wrote:235 Ribs will fit just fine.
You are comparing ST tire size to LT tire size, apples to oranges.
Get the 235, you will love them.
Lincster, are you saying ST and LT tires sizes are different even if they have the same exact numbers??
There are differences in height/width depending on the mfr. The same size tire may be slightly different.
If you go to each Mfr. website, you can get the numbers and compare.
I had to be careful of the width on my rig, so I went with a narrower tire.
2008 GMC 2500HD 4X4 DMax CC LB
2004 Thor Wanderer Wagon 247WTB
2006 TE450 Husky
2007 Rhino Sport Edition
|
|
|
