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View Full Version : Trailer tires question - which LT235/75R15?



LDavis104
Mar. 21, 2012, 10:11 AM
I have a Turnbow 2-horse gooseneck that I bought used in July. It has Treva LT235/75R15 tires on all 4, but I realized the spare is a P-metric 4 ply tire and I wanted to get a new spare to match the other 4 (others are almost new, will be a while before I need to replace them).

I spoke with CD Turnbow to determine if the previous owners put the right size tires on the trailer before I bought a spare to match because my regular tire place suggested that I get 225 tires instead. CD confirmed the LT235/75R15 is the appropriate tire for my trailer. He also recommended I stay away from any “off-road” type tires with chunky tread.

I can’t seem to find the Treva tires anywhere. I would probably get a different brand when I replace all 4, so was thinking if I can get a tire that I can find easily from my local tire places, when it comes time to replace all 4 I could match them to the spare. Does it matter if one tire is a different brand/tread pattern than the others? I know the size and type (LT) needs to be the same, but what else should I look for to make sure the spare will work fine with the others (if I can have a different brand)? I see many tires that are “LT235/75R15 C” (like some Firestone and Bridgestone) and I’m not sure what the C means.

Thanks for any advice!

2bee
Mar. 21, 2012, 05:06 PM
An LT235/75/15 C tire is an excellent tire for a 3500 trailer axle, much better than the standard ST205/75/15. The "C" is the load range; 50 psi, "6 ply" if you will.

Any name brand LT tire will do fine, highway tread is what you want to ask for. Exactly matching the spare is not necessary, size and construction (radial vs bias) are what matters.

LDavis104
Mar. 22, 2012, 09:50 AM
Thanks 2Bee!

This is the tire I was able to find at my local tire place. Does this look like it would "go with" the 4 Treva LT235/75R16 6-play "radial a/p" tires currently on the trailer? I'm not sure how to tell the difference between a radial and a bias tire, or what that means really (though I could ask the guys at the tire place when I go out there later today).

The tire I've found is a Falken Ziex S-TZ
http://www.falkentire.com/Tires/Ziex-S-TZ04-6

Here are the specs
Size: LT235/75R15
Load/Speed: 101/104Q
Load/Ply: C/6
Meas.Rim: 6.5
Approved Rims: 6.0 - 7.0
OD; 28.8
Section Width: 9.4
RPM: 712
Tread Width: 7.3
Tread Depth:16/32

shakeytails
Mar. 22, 2012, 10:08 AM
I'm not sure I'd be comfortable with a "C" load rating, but then, I don't think my trailer tires don't even come in "C" (7.50R16LT).

Why is it so hard to even find trailer tires online? I'll probably just end up at a local shop, but it would be nice to be able to browse and compare prices online.

2bee
Mar. 22, 2012, 08:45 PM
Thanks 2Bee!

This is the tire I was able to find at my local tire place. Does this look like it would "go with" the 4 Treva LT235/75R16 6-play "radial a/p" tires currently on the trailer? I'm not sure how to tell the difference between a radial and a bias tire, or what that means really (though I could ask the guys at the tire place when I go out there later today).

The tire I've found is a Falken Ziex S-TZ
http://www.falkentire.com/Tires/Ziex-S-TZ04-6

Here are the specs
Size: LT235/75R15
Load/Speed: 101/104Q
Load/Ply: C/6
Meas.Rim: 6.5
Approved Rims: 6.0 - 7.0
OD; 28.8
Section Width: 9.4
RPM: 712
Tread Width: 7.3
Tread Depth:16/32

Looks good to me.

The "R" (LT235/75R15) in the tire specs indicate a radial. Radial vs. bias is really only an issue with trailer tires where bias ply is still readily avaliable.

2bee
Mar. 22, 2012, 08:48 PM
I'm not sure I'd be comfortable with a "C" load rating, but then, I don't think my trailer tires don't even come in "C" (7.50R16LT).



Then perhaps you should do a little more tire 101. In this case the "C" rated tires have a load capacity of ~2000lbs, which is actually ~250lbs more than required to make the axle rating. :)

lily04
Mar. 23, 2012, 06:51 AM
http://www.easternmarine.com/em_store/trailertires/

Why is it so hard to even find trailer tires online? I'll probably just end up at a local shop, but it would be nice to be able to browse and compare prices online

Fred
Apr. 14, 2012, 10:40 AM
OP, I'm wondering what you ended up buying?

I need to get all new tires for my 2+1 Sundowner (steel) GN with change room.

Any suggestions for me?

MeghanDACVA
Apr. 14, 2012, 08:07 PM
FWIW, we run G's on our trailers. But both our trailers are big.
G's aren't cheap though.