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235 tire on 5.5" rim?

Posted By: mopartial

235 tire on 5.5" rim? - 06/23/08 10:27 PM

OOOPS! 1) Bought tires (235/60/14), 2) Measured rims (5.5"), 3) Found rims 1" too narrow than minimum recommended for tire.(6.5") Is this too far? (Mild SB A-body driver)
Posted By: Anonymous

Re: 235 tire on 5.5" rim? - 06/23/08 10:59 PM

I ran 245-60-14's on 5.5in. rims for years on my Duster. They worked fine.
Posted By: mopartial

Re: 235 tire on 5.5" rim? - 06/23/08 11:15 PM

Thats good to hear. Thanks.

Anyone else?
Posted By: JD340

Re: 235 tire on 5.5" rim? - 06/23/08 11:32 PM

Quote:

I ran 245-60-14's on 5.5in. rims for years on my Duster. They worked fine.




Ditto on my Dart. No issues!
Posted By: Dart270

Re: 235 tire on 5.5" rim? - 06/23/08 11:35 PM

I had 225/60-14 on 6" rims, I did not like it.
Max recommeded tire on 5,5" rims is 215.
Posted By: mopartial

Re: 235 tire on 5.5" rim? - 06/24/08 12:00 AM

Quote:

I had 225/60-14 on 6" rims, I did not like it.




What was it that you didnt like?
Posted By: Mopar1

Re: 235 tire on 5.5" rim? - 06/24/08 12:37 AM

I know a few guys who have 245/60/14 on 5.5" wheels without any problems. One guy has been running this combo since '89
Posted By: Michael

Re: 235 tire on 5.5" rim? - 06/24/08 12:41 AM

Not enough rim width for that tire.
Posted By: mopartial

Re: 235 tire on 5.5" rim? - 06/24/08 02:47 AM

Quote:

Not enough rim width for that tire.




Michael, can you elaborate? What kind of problem would this mismatch lead to?

I read about 1) shortening of tire height (slight) and 2) change in profile of sidewall moves flex/stress point to where it doesnt belong and could lead to tire "failure", theoretically. But experience of several above suggests "no problemo".

What do you say?

Thanks for input.
Posted By: Anonymous

Re: 235 tire on 5.5" rim? - 06/24/08 03:17 AM

Quote:

Not enough rim width for that tire.


The places I priced tires at didn't want to go anything over a 215 on a 5.5" wheel.
Posted By: stumpy

Re: 235 tire on 5.5" rim? - 06/24/08 02:18 PM

The trouble comes in when you inflate the tire. Too wide a tire changes the bead angle and reduces the contact area between the bead and rim allowing a greater chance of the tire losing it's seal under side loading.
Posted By: Pacnorthcuda

Re: 235 tire on 5.5" rim? - 06/24/08 03:26 PM

I wouldn't be doing any hard cornering with loved ones in the car.
Posted By: dave571

Re: 235 tire on 5.5" rim? - 06/24/08 06:26 PM

Quote:

I ran 245-60-14's on 5.5in. rims for years on my Duster. They worked fine.




me too. They are a really nice fit. Not tight at all.

I'm currently running 305 50 15 on a stock cop wheel. It was a pain to get on, but it works.
Posted By: mopartial

Re: 235 tire on 5.5" rim? - 06/25/08 02:54 AM

Quote:

Too wide a tire changes the bead angle and reduces the contact area between the bead and rim




Now that makes sense.

Thank you Stumpy for useable info.
Posted By: Anonymous

Re: 235 tire on 5.5" rim? - 06/25/08 02:55 AM

Quote:

I wouldn't be doing any hard cornering with loved ones in the car.




i would...
Posted By: 375inStroke

Re: 235 tire on 5.5" rim? - 06/25/08 03:45 AM

A friend ran 245/60-14" on a 5.5" rim. The pressure needed to be around 20 to 25 psi to get an even tread pattern. Handling will suffer, but traction will increase. This was in a 440 Dart with /6 torsions and 90/10 shocks, so handling sucked anyways.
Posted By: GTXKen

Re: 235 tire on 5.5" rim? - 06/25/08 01:34 PM

BFG has a chart somewhere on their site. 235s are too wide for a 5.5" rim. They won't handle the eay they should because the sidewall is drawn to tightly inward. They won't seal as well because the bead is at an incorrect angle and the contact pattern on the street will never be as the manufacturer intended. The ideal is to have the tire towards the middle of the rim range, for better handeling use the widest reccomended rim. A 235 on a 7" rim will measure 1" more if mounted on a 8" rim.

Posted By: MoparforLife

Re: 235 tire on 5.5" rim? - 06/25/08 01:45 PM

Hey face it: It will go on but it ain't right and they more than likely will be short lived and have very poor wear and handling characteristics. The beads will be sucked in, the face will never full contact the road surface the way it is designed to(unless you run low air pressures [that alone is unsafe]). Running low tire pressure to get contact surface creates excessive heat. Hell in short it won't even look good all sucked in on the rim. Kind of like a fat lady with a too tight girdle. Oh and if I were running a tire shop I wouldn't mount them on those rims either.
Posted By: dmerc

Re: 235 tire on 5.5" rim? - 06/25/08 01:53 PM

Your car will handle like a drunk Water Buffaloe. That is reason enough not to do it. Think safety first.
Posted By: Fury Fan

Re: 235 tire on 5.5" rim? - 06/25/08 03:48 PM

You gotta love the 'net, 180° disagreement (as usual).

I attended a seminar on rigging, hoists, chains, cables, etc some years ago. A question arose on whether someone could weld a hoisting hook onto an item instead of bolting it. After some discussion and naysaying from some 'experts' in the crowd, the final response of that factory rep was 'Do you think you know more about our products than we do?'.

I'm sure this comment will anger the folks driving on this tire setup, but I would trust the tire manufacturers recommendations more than the heresay of individuals that may or may not have the same car, same vehicle weight, driving habits, judgment, etc, as you.
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