Page 1 of 1

How close is too close?

PostPosted: Fri Jul 20, 2007 7:57 am
by benzu
How close is everyone's tires to the outside walls.

The place that I purchased my axle from kind of screwed up and made the hub to hub too short. :( I'm just starting to put the floor together and i'm realizing that the wall will be about 3/4'' away from the inside tire. Dicount Tire also screwed up when they sold me the tires. :(

I asked for 15 x 5 and they gave 15 x 7. I'm thinking of going back today and swapping them out to the 15 x 5 that should give me some more clearance.


Mike

PostPosted: Fri Jul 20, 2007 11:57 am
by Airspeed
I have about 1" clearance and haven't had any problems,I have taken it down some bumpy roads and the tires haven't touched yet. If you think you might have a problem you could put some spacers between the hub face and the rim, Most tire shops should have or be able to get some for you. Aaron

PostPosted: Fri Jul 20, 2007 12:03 pm
by benzu
Thanks Aaron I'll check that out. I may just change my tires to the 15x5 from 15x7 I know that should help.

mike

PostPosted: Fri Jul 20, 2007 12:41 pm
by 48Rob
I would do my best to get a minimum of 1.5" inside, and out.

Less will work, and some may have no trouble...but an overloaded trailer, low tire pressure, and going around a few corners can close that gap very easily... :thinking:

Rob

PostPosted: Fri Jul 20, 2007 12:45 pm
by benzu
Thanks Rob I'll try to achieve that.

Mike

PostPosted: Fri Jul 20, 2007 1:00 pm
by Ken A Hood
Is it a spring or torsion axle? Torsion axles rotate up/down and don't need as much sidewall room. Spring axles meanwhile flex causing the axle to "bend" requiring more room for the tires.

On the frame I have (torsion axle) there's just over an inch to the fender side

PostPosted: Fri Jul 20, 2007 1:09 pm
by benzu
Ken, I have a torsion axel so I'm safe there.

Mike

PostPosted: Fri Jul 20, 2007 3:01 pm
by caseydog
I would think that 3/4 would be okay on a tire that only goes up and down. My car tires run closer to fixed objects than that, and it has to deal with a lot more movement than a trailer axle/tire.

When you say 15 X 7, are you talking wheel or tire? On a trailer, you don't need a lot of witdth on either one, but a wide wheel with a narrow tire is a bad idea, as is a narrow wheel and a wide tire.

I'd go with a 5.5 wide wheel, with about a 195mm section width on the tire, or less. A 5.5 inch wheel with a 185 or 195-75-15 tire should work.

You can also get a wheel with more of an outward offset. Does the axle manufacturer specify a proper offset for the wheels?

In the end, if your tire ends up closer to the TD than you are comfortable with, you can put a 1/4-inch spacer on each side -- maybe even a 3/8. Just make sure you have enough stud sticking out to get a lug nut on safely. This does the same thing as using a different offset, but with any wheel.

Also, a true "trailer" tire will have less sidewall bulge (generally) than a passenger car tire. A lot of car tires have really soft sidewalls.

PostPosted: Fri Jul 20, 2007 3:11 pm
by benzu
Wow! Thanks Casey for all that. I do have trailer tires which can I say are expeeensive! :cry: And when I say 15x7 I am talking about the tire not the wheel. The spacers sound like a good idea.


Thanks again,

Mike

PostPosted: Sat Jul 21, 2007 5:14 pm
by caseydog
Mike, check your PM.

And, one good thing about Discount tire is, they will take things back if you aren't satisfied. I buy a lot of tires from them, and on a few occassions, I just did not like the way the tires they recommended performed (I'm very picky), and they took them back for another choice.

I had one set that I did not like after I put about 5,000 miles on them. I went in for my free rotaion, and the guy asked me how I liked my tires, and I told him I didn't, but it was too late now -- I should have done something sooner. He looked at my car, and the brand/model of tire, and said, "that's not a good tire for a car like yours", and took them back and gave me 100% credit toward a better set of tires. Gotta like that.