Tire Size For 20x9's - F150online Forums



Tire Size For 20x9's

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  #1  
Old 04-05-2010, 06:12 PM
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Tire Size For 20x9's

Wondering what I can get away with for tires on a 20X9 rim. I have an '09 4X4 XLT, I would like a bigger tire but I am unsure about leveling. Anyone have any suggestion on what I should do? Right now i'm looking at 305/50-20. The next step up would be 305/55-20 which is a 33X12.5. Can I get away with a 33X12.5 with no level? I do not want any rubbing issues or have to trim anything. Thanks for any help.
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Old 04-05-2010, 10:04 PM
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not sure if the 305-55-20 will fit cuz i've heard of guys on here who experienced rubbing even with the level kit. I got 275/65/20 bfg's (34.1 inches tall) and they don't rub at all, but i have a 2 inch level kit

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Old 04-05-2010, 10:18 PM
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The problem is the width right. So if I want a 33x12.5 tire i'm gonna have to go with a lower offset so the tire is farther away from the mechanical stuff (yes that's a technical term).
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Old 04-05-2010, 11:59 PM
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The answer depends on the backspacing of your wheels. If it's 5 to 6 inches you will be fine at stock height with a 305/55-20. If it's 4.5 inches you will probably have to do some trimming.
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Old 04-06-2010, 08:28 PM
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i have 305/50r20 cooper zeon's on a 20x8.5 wheel with a 20mm offset and the inside of the tire rubs a little on the mudflaps only when reversing,they never rubbed at all before i put the mudflaps on. if that helps at all
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Old 04-06-2010, 10:50 PM
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305/55/20...barely any rubbing with -12 offset 20x9 wheels. just trim a little inch or so of plastic. pics on gallery. and there are plenty of others with this setup.
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Old 04-06-2010, 11:50 PM
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I have 305/55/20 on 20x9s with 4.5 backspacing and they did rub on the backside of the fender just took some triming.. I also have a 2.5 in leveling kit.
This may give you a little ideal how they will look.

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Old 04-07-2010, 01:18 AM
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Quote:
Originally Posted by Harper 184 View Post
Looks great -- just the right balance of rim and tire.....
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Old 04-07-2010, 05:37 PM
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not sure of my spec's but heres one picture of my tires with stock 20"s
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Old 04-09-2010, 06:38 PM
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Originally Posted by wandell View Post
The answer depends on the backspacing of your wheels. If it's 5 to 6 inches you will be fine at stock height with a 305/55-20. If it's 4.5 inches you will probably have to do some trimming.
I believe the backspacing is 6.38" and offset of +35 mm.
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Old 04-09-2010, 11:40 PM
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They should fit easily then. The OEM wheels are 8.5 inches wide with 6.5 inches of backspacing to give you an idea of the look.
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Old 04-10-2010, 07:17 PM
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My OEM wheels are 17x7.5 with 44 mm offset.
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Old 04-11-2010, 12:09 AM
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I was referring to the OEM 20's like in Psnyder's pics.
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Old 04-11-2010, 11:01 PM
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Would 285/50R20 on XD797 Spy Rims -12 Offset 4.53 Backspace fit my 06 Screw with no lift or leveling kit without rubbing?
Or would i even be able to go bigger? if so what size?

Last edited by PhillyCOP; 04-11-2010 at 11:04 PM. Reason: adding info..
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  #15  
Old 04-11-2010, 11:17 PM
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I'd go with at least a 285/55-20 tire.
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