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View Full Version : 14 inch load D tire available or go to 15 inch?


Jonathan94
06-03-2009, 01:03 AM
As part of my trailer refurb, I need to replace my tires (pushing 10 years - I am on borrowed time I think). I have the stock 215 75 R14 Marathons that are load range C but am thinking about upgrading to at least load range D as we usually load it up when we travel. What is the advantage to moving up to 15 inch rims?

1. anyone know of any 14 inch trailer tires available in load range D?
2. anyone upsized to 15 inch rims to be able to do this? If so what size/brand? How is the clearance in the wheel well? Will this affect the brake system in anyway?
3. If I go with new 15 inch, what is the best way to sell the original "Mastercraft" stamped rims?

thanks

ProStar200
06-03-2009, 01:18 AM
I would do a search on trailer tires here. There have been a few threads on wheel upgrades. I upgraded my wheels last season as I needed new boots for my trailer. I stuck with 14's, why mess with something that isn't broken.

dummy
06-03-2009, 01:26 AM
Here you go.


The 215/75-14 Goodyear Marathons on my '00 dual axle MC trailer look original and have some major sidewall cracking, so I'm gonna pony up for some new rubber before I take the boat out this year. Been tweaking over trailer tires on-line like a monkey on caffine and crank for a couple days trying to decide.

FWIW, have narrowed it down to:

Kumho 857 in 205/75-14: 8-ply, 2,271lbs @ 65psi (they're load range D and good to 99mph)

Maxxis M8008 in 215/75-14: 6-ply, 1,870lbs @ 50psi (load range C)

Denman Express in 215/75-14: 6-ply, 1,870 @ 50psi (load range C)

First choice is Mastercraft or Cooper Custom Plus trailer tires, but I can't find 'em in any size other than 225/75-15 and I really don't want to install lift blocks and change rims on my trailer anytime soon.

I'll probably do the Kumhos 'cause I sometimes tow at 75mph on the way to Havasu and temps can get up near 120-degrees on the ride out. The smaller diameter is a bit of a bummer 'cause I hit the prop guard a lot, but I bought a dropped hitch that's 1-inch lower than the one I've been running, so that'll drop the nose of the boat down for towing and raise the prop guard a bit. The 205s spec out at 1/2-inch shorter (give or take) than the 215s, which will only drop the trailer 1/4-inch (radius of tire/wheel combo), so I'm betting it should be fine.

Will update when I finally decide and get 'em installed.

ProStar200
06-03-2009, 01:31 AM
You can always count on the guys here to jump in and help out. Doesn't take long. Good luck with whatever you do.

east tx skier
06-03-2009, 10:08 AM
When I had some marathons go South on my MC trailer, the guy who owned the Goodyear shop said that GY was recommending going as large with the trailer tires as possible. The ones on my new trailer are pretty large by comparison to my old trailer, though I can't remember the actual size.

dummy
06-03-2009, 10:17 AM
I run 225/75-15 Marathons on my car hauler trailer and they're quite a bit larger than my 215/75-14 boat trailer tires. The axles are spaced plenty far apart to run the 225s, but I don't think they'd clear the tops of the fenders.

Pretty sure both my trailers are the same bolt pattern. I don't have both here right now, but when I bring the carhauler back next week I can mock up 2 of 'em on the boat to see how the 225s fit providing the patterns are the same.

O2BESOHUGE
06-03-2009, 01:57 PM
I Did...i Went From 14 Inch Wheels And Tires To 15's On My Trailer. It Has Plenty Of Clearance And Gives The Pfop Guard A Little Extra Height Which Is Good. I DIDNT HAVE TO INSTALL LIFTING BLOCKS OR ANYTHING AND THE TIRES HAVE PLENTY OF ROOM

Heres Some Pics Of Mine. Heres Before...
Jay

O2BESOHUGE
06-03-2009, 01:58 PM
And After...

O2BESOHUGE
06-03-2009, 01:59 PM
HERES WHERE I GOT THEM...PRETY GOOD PRICES. THEY SHIP THEM TO YOU READY TO PUT ON WITH LUGS AND CENTER CAPS

http://www.sturdybuiltonline.com/Tires-Mounted-on-Wheels_c_3.html

JAY

awal
06-04-2009, 11:50 PM
Jonathan94. If you decide to upgrade to 15" tires I would love to buy your 14", as I broke one of my wheels lsat week. Your pic. is a match to the ones I have on my Maristar trailer. Please email me at adub1968@hotmail.com. Thanks Aron.

Jonathan94
06-05-2009, 11:58 PM
Thanks for the replies everyone. Here is where I am at...

14" - Dummy, good lead on the Kuhmo tires. Does anyone have experience with these? However, I am having a hard time tracking them up here in Edmonton. If anyone in Canada knows where these are available please let me know! Otherwise I am considering ordering from tirerack.com.

Can someone with tire experience let me know of any disadvantage going with a 205/75/14 instead of a 215/75/14? Will it be noticable?

15" - Huge, thanks, that is the reply I was hoping for. Which size tires did you end up with 205? 215, 225? Did you get 8 ply/D load?

Aron - thanks for the note, I will decide in the next couple of days but knowing you are looking for a rim tips the scales a bit.

O2BESOHUGE
06-06-2009, 04:04 PM
YES, They Are 205/75/15D Trailer Tires. I Got Them From The Site I Posted. They Come Ready To Put On

Jay

O2BESOHUGE
06-06-2009, 09:47 PM
HERES A BETTER PICTURE OF THE CLEARANCE YOU GET. THESE ARE 205/75/15D TRAILER TIRES. 8 PLY

PLENTY OF CLEARANCE, TRAILER FENDERS DO NOT TOUCH AND PLENTY OF HEIGHT.
JAY

HERES WHERE I GOT THEM:

http://www.sturdybuiltonline.com/ST20575D15-Bias-ply-Tire-Mounted-on-Aluminum-Split-Spoke-Wheel-_p_121.html

THAT PRICE THEY HAVE IS FOR LUG NUTS, CENTER CAP AND RIM AND TIRE MOUNTED READY TO BE PUT ON YOUR TRAILER. YOU CANT BEAT IT~!

dummy
06-06-2009, 10:41 PM
FYI - ad says tire is 1820lbs, Load range C. Check your sidewalls and get back to us. One of you is off.

Jonathan94
06-06-2009, 11:52 PM
I was going to ask the same question. Going off the "H188" in one of the pictures, I think I found that the tire is this.

http://www.taskmasterproducts.com/acatalog/tires_15_6.html

Regardless - I don't think I can go any larger than this to get . But, for curiousity, I will be taking it to a local tire shop to see how Marathon 225/75/15 (in 8 ply) will fit (just to eliminate this option).

Was doing some more research about staying with original size tire ..... from specs page for 2000 X-5 :
Design Weight: 2540 lbs/1152.14 KG (not sure if that includes full gas of 31 gal x 6lbs/gal = 186 lbs
Single Axle Trailer Weight: 810 lbs/367.42 KG = 3,350 lbs + 186 = 3,536 lbs

stock 215/75/14 rated at 1,870 lbs/ea = 3,740 lbs ---> difference of only 204 lbs for gear!

And another option...
I found locally a Westlake (never heard of it) bias ply tire - 205/75/15, 8 ply. Did a little Googling and I do not get a good feeling about them. Anyone have experience?

thanks again

Patrick Hardy
06-07-2009, 12:35 AM
These are the 14" Kuhmo tires that I have used for the last 12 years. http://www.tirerack.com/tires/tires.jsp?tireMake=Kumho&tireModel=Radial+857&partnum=0R4857
I have had great success / usage out of them. I travel all over the west coast in all types of temperatures and have never had any sort of failure with these tires.

Whitfield
06-07-2009, 10:07 AM
I was going to ask the same question. Going off the "H188" in one of the pictures, I think I found that the tire is this.

http://www.taskmasterproducts.com/acatalog/tires_15_6.html




At $41 each, I'm not sure of the quality of the Taskmaster tires. But they do offer the 205x75-15 tire and aluminum wheel combo for about as much as the Kumho tires.

http://www.taskmasterproducts.com/acatalog/AlumAssem.gif

Jonathan94
07-16-2009, 02:55 PM
Just a follow-up...

I went with the 14", 8 ply Kuhmo tires. Talked with the Kuhmo Canada rep and they were not available in Canada so had them shipped up from tirerack.com (super easy).

The 22575R15 tires fit fine for clearance but I did not like that they stuck out from the edge of the fenders more than the original and was concerned about them kicking stuff up at the boat past the fenders. Plus, I didn't want to spend more money on new rims.

I like being able to put the 65psi in them. I have only towed for 150km with them so far but the trailer did ride better for sure. We have a long trip through Calgary then to the Shuswaps in a few weeks and the boat will be loaded with gear, hope that they travel well for that.

burp
07-25-2010, 06:01 PM
Jonathan,

Since you have had the Kumho 14" load range D trailer tires for a little while, How are they holding up? Are you satisfied with their performance and handling?

My boat and trailer weight is pushing the limits on the 215/75R14 load range C rated tires and I have had several blowouts :( (Goodyear Marathons). I'm looking for a reliable 14" load range D tire.