235/85/r16 On Stock 5.5X16 Wheels - Defender Source
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  #1  
Old October 17th, 2019, 06:13 PM
Boonecohog
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235/85/r16 On Stock 5.5X16 Wheels

I've got a stock 1993 RoW 110 SW. I've only owned the truck a few months so I'm learning.

Based on faulty internet research I bought 235/85/r16 Cooper ST Maxx tires to put on my stock old white 5.5X16 wheels, thinking there would be no issues.

However, they rub my radius arms when I have to make a tight turn. This really bugs me and I was thinking of getting new wheels anyway.

Not knowing or really understanding wheel offset would the following wheels fitted with these tires still rub?

1. Terra Firm 7X16 Steel 8 Spokes from Rimmer Bros.
2. Wolf 6.5X16

I've spent so many hours trying to find the "internet" answer my eyes are burned out, so I'm hoping the collective knowledge of the forum can help me out!
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  #2  
Old October 17th, 2019, 06:30 PM
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Adjust the turn limiting stops so the wheels no longer rub.
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Old October 18th, 2019, 08:18 AM
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^^^^this. Does not take long and is the proper fix.
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Old October 18th, 2019, 09:11 AM
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U and I have the same stock set up. You just need an adjustment.
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Old October 18th, 2019, 10:57 AM
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Thanks. I’ll consider that. I suppose I will just have to accept a slight reduction in turn radius?

Does anyone know if my original question re different wheels would also solve the issue? I’ve been considering new wheels anyway but was trying to be frugal.

Love the pic of your Rover. It is so fascinating to me that no Defender looks alike.
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  #6  
Old October 18th, 2019, 11:06 AM
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the wheels and tires (235/85R16) that you have are correct factory fitment.

the issue you are experiencing is likely due to the aggressive shoulder tread on the particular tires you bought, compared to OEM which likely have a slimmer overall profile with milder tread.

the reduction in turning radius you may experience will be literally imperceptible.

aftermarket wheels, especially those with more offset to in theory allow a sharper turn, never look right on defenders.

adam
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Old October 18th, 2019, 02:07 PM
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With respect to Adam’s comment above, while 235/85 r16’s are the modern equivalent, they are a wider wheel than the 7.5 x16 that was originally fitted on 90’s and 110’s that came with the 5 1/2” “series” wheel. 235’s will tend to balloon out slightly on the 5 1/2” wheel.

If you like the look of your factory wheels and want to keep them with those tires, adjust your steering stops or install spacers. (Which creates a whole other set of issues)

If you want to fit a bigger tire in the future, the NAS/1ton spec ANR1534 wheel which is no longer available gives you a 6 1/2” wider “Deep dish” wheel.

As you mentioned you can also run Wolf wheels if you prefer that look.

However, many of us with early 90’s and 110’s run that tire size, with those wheels and do not run the radius arms. Your path of least resistance is to go that route unless you want a cosmetic change or to run a larger tire.
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Old October 18th, 2019, 03:53 PM
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Sounds like the aggressive shoulder tread is the culprit here and the steering stop adjustment is the simple fix.

I’m a little slow so are you saying if I switch to Wolfs 6.5 inch that should give me enough offset to avoid the radius arm?

Anybody have experience with the Terra Firma wheel I mentioned above?

Thanks.
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Old October 18th, 2019, 06:58 PM
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Personally I prefer 7.50 x 16 on 5.5in wheels, but just adjust the stops a bit.
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Old October 19th, 2019, 10:27 AM
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I have 7x16 8 spoke Terra Firma running on 235/85 16 and have no rubbing
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  #11  
Old October 19th, 2019, 10:45 AM
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You should definitely check your turn limiting stops on steering first before making a decision on wheels. I never rubbed with 235/85r16 Duratracs on my 5 1/2” wheel.
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Old October 19th, 2019, 08:38 PM
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lbrouting, is your truck lifted? How do you like the TF wheels?

Thanks everyone for the good info.
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Old October 20th, 2019, 08:41 AM
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Yes, I have a 2 inch lift. The wheels are wheels. They hold the tire and look good. I wheel my 90 quite a bit and they have not lost bead in low pressure or dented easily.
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Old October 20th, 2019, 09:12 AM
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Quote:
Originally Posted by Boonecohog View Post
Sounds like the aggressive shoulder tread is the culprit here and the steering stop adjustment is the simple fix.

I’m a little slow so are you saying if I switch to Wolfs 6.5 inch that should give me enough offset to avoid the radius arm?

Anybody have experience with the Terra Firma wheel I mentioned above?

Thanks.
Yes.
It doesn't really matter what is causing the tire to rub.
Adjusting the turn limiting stops is the only real answer and you are correct when you refer to it as simple.
The vehicle already has a turning radius second only to a semi, so a few turns on the stop adjustment will not make any real difference.
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