Widest wheels on Tibs
 

I'm in the market for some wheels and I'm wondering what's the widest wheels/tires I can get without looking like a lowrider? I'm thinking 17's. Does offset play a role in that? Also, I searched the net but can't seem to find a conversion from rim width to tire width (ie. 7.5 wide rims to xxx wide tires). Any help is greatly appreciated!

::[mike]::

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2000 Tib 5spd -black-

i'm currently also looking for this answer, i plan on going to a local rim shop soon .

To do the conversion, 215/40/17. The tire is 215 Millimeters wide, 40% of 215mm high (86mm), and 17 inch "hole" for the wheel.

So to do the width conversion, just convert MM to inches. Generally, you don't want a tire that is more than one inch wider than your rim. so with 7.5" tires you don't wanna go wider than 215mm tires.

In general, with the tibby, Don't go more than 215 wide.

Off set also plays a roll, yes.

Wheel offset is the measurement from the centerline of the wheel to where the stud face is.

So a 6" wheel with a +40 offset mounts in the same location aa 9" wheel with a +40 offset, but there is more "wheel" hanging out after the mounting point on the 9" wheel. (offset is measured in mm).

Do do the math.
6" wheel with a +40 offset
154.4 mm = wheel width
77.2 mm = wheel centerline
117.2 mm = mounting point (Centerline+offset)
37.2 mm = amount of wheel after mounting point (lip)

9" wheel with +40 offset
228.6 = wheel width
114.3 = centerline
154.3 = mounting point (Centerline+offset)
74.3= amount of wheel after mounting point (lip)


So you can see, even though the have the same offset, the 9" wheel sticks out a lot farther than the 6" wheel. To mount in the same OUTSIDE location as the 6" wheel, the 9" wheel would need a +77 offset. BUT that would just move more of the wheel IN towards the suspension components and the inside fenders (NOT GOOD..RUB CITY).

wow!! Thanks alot Random, i just got from a club and well, lets say I had a good time. I've read your reply 3 times. I'll read it again tommorrow and compreehend it. smile.gif happy cinco de mayo..another reason to party

oh yeah, thanks for needfullly complicating things wink.gif

MiKE

[ May 05, 2001: Message edited by: ::[aeliux]:: ]

I have 17"x7.5 with 215/40/17 rubber

You have to watch out for the rubbing on the rear arches due to the width of the wheels.

they look amazing and you dont have any gap between the and of the body and the begining of the wheel. With the stanard set up you have about half a hands width spare of over hang!

I had to roll up the lip under neath the rear arches and have a bolt shaved but only cost about £50 british pounds from a body shop. I would imagine you guys in the states would get it done for about $20 as we get hammered for everything accross here sad.gif

[ May 05, 2001: Message edited by: Chris ]

what is the lug offset Random 4x100 or 4x150. Thanks

The lug pattern is actually 4x113.5

The stock offset is +42 for the 15" wheels. Not sure what it is for the 14" wheels.

So would the stock offset still be appliable for the 17 in. rims?

Offset is based on width, not height.

The stock wheels are 6.5 wide or 6. (I'm not sure), so for 7 inch weels the stock +42 or +40 would be okay. If you go to 7.5 wide wheels I would try for a +38 or +40.

Remember, the higher the number the more it moves the wheel IN towards the center of the car, the lower the number, the more it moves the wheel out towards the outside of the car.

Also, becuase it is based on wheel with, a 7.5 +40 wheel mounts more INSIDE than a 6 +40 offset.

And if your car is lowered, or if you plan on lowering it, that is going to affect things too.