13, 14 or 15 inch tires on a trailer? - Great Lakes 4x4. The largest offroad forum in the Midwest

Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Tow rigs and trailers
GL4x4 Live! GL4x4 Casino

greatlakes4x4.com is the premier Great Lakes 4x4 Forum on the internet. Registered Users do not see the above ads.
Search
Reply
 
Thread Tools Search this Thread
Old March 3rd, 2007, 02:11 PM   #1
Buggy_Tim
(513) 891-8372
 
Buggy_Tim's Avatar
 
Join Date: 11-05-05
Location: Sault Sainte Marie
Posts: 11,912
iTrader: (12)
Mentioned: 6 Post(s)
Default 13, 14 or 15 inch tires on a trailer?

Ok, looking for pro's and cons for the 3 tires sizes on a tandem car hauler. It's a short trailer with 3500 pound axles. Seems the load range is the same for the most part on all 3 tires.

The trailer is only going to haul smaller cars, short distance and haul the YJ longer distances.

Any opinions?
Buggy_Tim is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old March 3rd, 2007, 03:15 PM   #2
Mongo
.
 
Mongo's Avatar
 
Join Date: 02-25-06
Location: Fenton
Posts: 8,042
iTrader: (6)
Mentioned: 0 Post(s)
Default

The 13's will make loading easier and keep the COG lower, but IIRC the 15's will last longer. Something about the larger diamater being better at highway speeds.
Mongo is offline   Reply With Quote
Old March 3rd, 2007, 04:55 PM   #3
sodapop
Support the Sport!
 
sodapop's Avatar
 
Join Date: 11-11-05
Location: Harrison Twp, MI
Posts: 2,015
iTrader: (18)
Mentioned: 0 Post(s)
Default

The larger diameter tire will make less revolutions and so it should theoretically last longer. In theory it might also be easier on the bearings too. As for lower and ease of loading, well you also have to worry about dragging your tail when you are pulling it round and in the grass too.
sodapop is offline   Reply With Quote
Old March 3rd, 2007, 05:47 PM   #4
Cooter
Dad Kickin' It OldSkool
 
Cooter's Avatar
 
Join Date: 12-04-05
Location: Chi-caw-go
Posts: 4,528
iTrader: (16)
Mentioned: 1 Post(s)
Default

Bigger is better. Better load carrying and less revolutions, which will keep the tire and bearings cooler.
__________________
Michigan- The Only Great Lakes State South of the Mason-Dixon Line.
Cooter is offline   Reply With Quote
Old March 3rd, 2007, 06:55 PM   #5
Haggar
Covered in mud...
 
Haggar's Avatar
 
Join Date: 11-06-05
Location: Oxford, MI
Posts: 17,709
iTrader: (56)
Mentioned: 2 Post(s)
Default

Quote:
Originally Posted by Cooter View Post
Bigger is better. Better load carrying and less revolutions, which will keep the tire and bearings cooler.
x2

And put radials on your braking axles (which should be both)
Haggar is offline   Reply With Quote
Old March 3rd, 2007, 07:06 PM   #6
Kawierider
Senior Member
 
Kawierider's Avatar
 
Join Date: 01-29-06
Location: Livonia
Posts: 1,533
iTrader: (2)
Mentioned: 0 Post(s)
Default

I thought you wanted bias ply's on a trailer ? I've heard that radials make lots of sway
Kawierider is offline   Reply With Quote
Old March 3rd, 2007, 07:27 PM   #7
Haggar
Covered in mud...
 
Haggar's Avatar
 
Join Date: 11-06-05
Location: Oxford, MI
Posts: 17,709
iTrader: (56)
Mentioned: 2 Post(s)
Default

Quote:
Originally Posted by Kawierider View Post
I thought you wanted bias ply's on a trailer ? I've heard that radials make lots of sway

Bias plies for non brake axles, radials for brake axles.

And for our needs, all axles legally require brakes in michigan.
Haggar is offline   Reply With Quote
Old March 3rd, 2007, 07:41 PM   #8
Buggy_Tim
(513) 891-8372
 
Buggy_Tim's Avatar
 
Join Date: 11-05-05
Location: Sault Sainte Marie
Posts: 11,912
iTrader: (12)
Mentioned: 6 Post(s)
Default

Quote:
Originally Posted by Mongo View Post
The 13's will make loading easier and keep the COG lower, but IIRC the 15's will last longer. Something about the larger diamater being better at highway speeds.
COG and easier loading for little cars and crap that I have to haul around town.

Quote:
Originally Posted by Haggar View Post
Bias plies for non brake axles, radials for brake axles.

And for our needs, all axles legally require brakes in michigan.
Yea, radials on both axles is what I am going to do. I thought about the cooler bearings and longer lasting tires...but for the few times a year I haul the Jeep, is it really that big of a deal if you keep the bearings serviced?

I know the law says so, but I see a ton of trailers with only 1 brake...and I see even more with brakes but the tow rig doesn't have a controller.:stan3:

I wanted to convert to surge brakes, but too much work and too much cost.
Buggy_Tim is offline   Reply With Quote
Old March 3rd, 2007, 08:28 PM   #9
Haggar
Covered in mud...
 
Haggar's Avatar
 
Join Date: 11-06-05
Location: Oxford, MI
Posts: 17,709
iTrader: (56)
Mentioned: 2 Post(s)
Default

Quote:
Originally Posted by MuddyPaws View Post
I wanted to convert to surge brakes, but too much work and too much cost.

And no fun backing up in anything that puts resistance on the trailer..
Haggar is offline   Reply With Quote
Old March 3rd, 2007, 08:43 PM   #10
Grandman
do i look old !
 
Grandman's Avatar
 
Join Date: 11-05-05
Location: West Branch Mi
Posts: 9,864
iTrader: (7)
Mentioned: 3 Post(s)
Default

The law does not require any brakes unless you are over 5,000 GVW . I am not aware of a law requiring both axles to have brakes and i dont think they would build it with only 1 if the law required both .

I my self would not run a trailer with out brakes on both .
Grandman is offline   Reply With Quote
Old March 3rd, 2007, 09:03 PM   #11
Freak
Wheelin the HD
 
Freak's Avatar
 
Join Date: 01-27-07
Location: Portland, TX
Posts: 7,227
iTrader: (14)
Mentioned: 0 Post(s)
Send a message via MSN to Freak Send a message via Yahoo to Freak
Default

I don't understand the whole brakes thing, I towed a full sized suburban on a dolly with my 89 f150! it stopped just fine after pushing me about 5 feet.
Freak is offline   Reply With Quote
Old March 3rd, 2007, 09:45 PM   #12
Buggy_Tim
(513) 891-8372
 
Buggy_Tim's Avatar
 
Join Date: 11-05-05
Location: Sault Sainte Marie
Posts: 11,912
iTrader: (12)
Mentioned: 6 Post(s)
Default

Quote:
Originally Posted by Haggar View Post
And no fun backing up in anything that puts resistance on the trailer..


Most have a release switch that makes it so the brakes don't apply when you want to backup.

It's a pain sometimes, but not usually, I had it on my old boat trailer.

The new one is wired in...when you put it in reverse, it takes a signal from the backup lights and closes a solenoid and doesn't allow the brakes to work....sorta like a line lock.

New surge brakes are far better then the old crap.
Buggy_Tim is offline   Reply With Quote
Old March 4th, 2007, 12:08 AM   #13
Monkeyevil
I <3 Miatas
 
Monkeyevil's Avatar
 
Join Date: 11-05-05
Location: Kalamazoo, MI
Posts: 8,987
iTrader: (16)
Mentioned: 2 Post(s)
Send a message via AIM to Monkeyevil
Default

boat trailers have surge brakes because they can't have all the electrical stuff submerged all the time. They actually do offer a water proof electric brake setup now.

Personally I think electric brakes are a lot better because you can control the brakes independantly of the truck. Which is useful more often than you think.
__________________
JcrOffroad
Zoom Zoom!
Monkeyevil is offline   Reply With Quote
Old March 4th, 2007, 06:52 AM   #14
whiterhino
I'm not old, honest...
 
whiterhino's Avatar
 
Join Date: 03-07-06
Location: Davisburg MI
Posts: 21,710
iTrader: (21)
Mentioned: 13 Post(s)
Default

Did a quick search. Found the state police inspection sheet. Look in section D. States brakes on all wheels if 5500 pounds. I haven't found the actual law.

http://www.michigan.gov/documents/TR-54_38480_7.pdf

I also found several rv and boat sites that state brakes are required over 3000 pounds.

As far as the tire size, I would go with the 15". Keep in mind that the actual trailer deck height is only 1" higher with a 2" taller tire. I have had my share of trailer tire issues over the years. Personally I don't like radials because of the sway. They are also visually harder to determine if they are low on tire pressure when doing a simple walk around inspection during fuel stops. I never get anthing but "D" rated bias now.

And like the other guys said, larger tire equals slower revolutions and cooler bearings.

just my .02
whiterhino is offline   Reply With Quote
Old March 4th, 2007, 07:03 AM   #15
Viperdave
A-1 Dave Costa
 
Join Date: 03-12-06
Location: Wolcott, Ct
Posts: 1,106
iTrader: (2)
Mentioned: 0 Post(s)
Send a message via AIM to Viperdave
Default

i know with my open car trailer on 225/70R15 i have no sway at all. My enclosed sled trailer is on 205/70R15 and that only has sway when unloaded. The big thing in preventing sway is making sure the trailer is loaded evenly and that it sits flat when loaded...
Viperdave is offline   Reply With Quote
Old March 4th, 2007, 07:09 AM   #16
Viperdave
A-1 Dave Costa
 
Join Date: 03-12-06
Location: Wolcott, Ct
Posts: 1,106
iTrader: (2)
Mentioned: 0 Post(s)
Send a message via AIM to Viperdave
Default

in terms of size and revolution

a 225/70R15 travels 736 revolutions per mile
a 175/80R13 travels 840 rev/mile or about 12.4% more rev per mile

which also means that when travelling at 70 your trailer tires will be if 175/80R13 will be doing a comparitive 78.8 mph
Viperdave is offline   Reply With Quote
Old March 4th, 2007, 10:03 AM   #17
Buggy_Tim
(513) 891-8372
 
Buggy_Tim's Avatar
 
Join Date: 11-05-05
Location: Sault Sainte Marie
Posts: 11,912
iTrader: (12)
Mentioned: 6 Post(s)
Default

Quote:
Originally Posted by monkeyevil View Post
boat trailers have surge brakes because they can't have all the electrical stuff submerged all the time. They actually do offer a water proof electric brake setup now.

Personally I think electric brakes are a lot better because you can control the brakes independantly of the truck. Which is useful more often than you think.
My 28 foot Cobia (18 years old) boat sits on a 14 year old trailer that has electric brakes.
Buggy_Tim is offline   Reply With Quote
Old March 4th, 2007, 05:05 PM   #18
Monkeyevil
I <3 Miatas
 
Monkeyevil's Avatar
 
Join Date: 11-05-05
Location: Kalamazoo, MI
Posts: 8,987
iTrader: (16)
Mentioned: 2 Post(s)
Send a message via AIM to Monkeyevil
Default

Quote:
Originally Posted by MuddyPaws View Post
My 28 foot Cobia (18 years old) boat sits on a 14 year old trailer that has electric brakes.
Huh, that's cool. Not many of those around.
__________________
JcrOffroad
Zoom Zoom!
Monkeyevil is offline   Reply With Quote
Old March 4th, 2007, 07:59 PM   #19
Haggar
Covered in mud...
 
Haggar's Avatar
 
Join Date: 11-06-05
Location: Oxford, MI
Posts: 17,709
iTrader: (56)
Mentioned: 2 Post(s)
Default

Quote:
Originally Posted by whiterhino View Post
Did a quick search. Found the state police inspection sheet. Look in section D. States brakes on all wheels if 5500 pounds. I haven't found the actual law.

http://www.michigan.gov/documents/TR-54_38480_7.pdf

I also found several rv and boat sites that state brakes are required over 3000 pounds.

As far as the tire size, I would go with the 15". Keep in mind that the actual trailer deck height is only 1" higher with a 2" taller tire. I have had my share of trailer tire issues over the years. Personally I don't like radials because of the sway. They are also visually harder to determine if they are low on tire pressure when doing a simple walk around inspection during fuel stops. I never get anthing but "D" rated bias now.

And like the other guys said, larger tire equals slower revolutions and cooler bearings.

just my .02

In the Michigan Vehicle Code, it states:

257.705 Brakes.

Sec. 705.

(1) Brake equipment shall be required as follows:


(d) A new motor vehicle, trailer, or semitrailer sold in this state and operated upon the highways shall be equipped with brakes on all wheels, except a motorcycle or moped, and except that a semitrailer, pole trailer, or trailer of less than 3,000 pounds gross weight need not be equipped with brakes if the gross weight of a trailer or pole trailer, no part of the load of which rests upon the towing vehicle, does not exceed 40% of the gross weight of the towing vehicle, and if the gross weight of the towing vehicle and the gross weight of a semitrailer or pole trailer, part of the load of which rests upon the towing vehicle, does not exceed 40% of the gross weight of the towing vehicle when connected to the semitrailer or pole trailer. This subdivision shall not apply to a trailer or semitrailer owned by a farmer and used exclusively in connection with the farming operations of the farmer and not used for hire.

Gross weight being defined as:

257.19 “Gross weight” defined.

Sec. 19.

“Gross weight” means the weight of a vehicle without load plus the weight of any load thereon.



So, what that means is that EMPTY you don't need brakes on most flatbed, which weigh in around 1500-2000 lbs unloaded. But when you've got a 4x4 up there your trailer gross weight is ~5000-7000 lbs, which is usually more than 40% of your tow vehicle, which for most of us is ~7000-12000 lbs.

So, even the baddest Dodge 3500 out today, which has a gross vehicile weight rating of 12200 lbs can't legally tow a stock TJ on an average trailer without 4 wheel trailer brakes. Bu tit can tow that trailer empty with no brakes.
Haggar is offline   Reply With Quote
Old March 4th, 2007, 09:07 PM   #20
Buggy_Tim
(513) 891-8372
 
Buggy_Tim's Avatar
 
Join Date: 11-05-05
Location: Sault Sainte Marie
Posts: 11,912
iTrader: (12)
Mentioned: 6 Post(s)
Default

Ahhhhhh, but wouldn't that read as a "new" trailer? Like older trailers with only 1 brake are ok?

My 21 foot only has brakes on 1 axle and the SOS said it was ok when I registered it.
Buggy_Tim is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Tow rigs and trailers

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

Forum Jump


All times are GMT -5. The time now is 10:49 PM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Page generated in 0.33530 seconds with 80 queries