Recommended Tire size & Offsets!

[geeq]

Tires


5th Generation (1997-2001)

205/50/15 - Better Acceleration, Overall Diameter is Smaller
205/55/15 - Recommended 15� Size Tire w/ 6.5" wide wheel
215/50/15 - Larger Contact Patch, Better Acceleration, Overall Diameter is Smaller
225/45/15 - Even Larger Contact Patch, Minimum of 7" wide wheel is recommended, Overall Diameter is Smaller
225/50/15 - Even Larger Contact Patch, Minimum of 7" wide wheel is Recommended
------------------------------------------------------------------------
205/50/16 - Stock Size, Recommended 16" Size Tire
215/45/16 - Larger Contact Patch
215/50/16 - Larger Contact Patch, Overall Diameter is Larger
225/45/16 - Even Larger Contact Patch, Minimum of 7" wide wheel is Recommended
------------------------------------------------------------------------
215/40/17 - Larger Contact Patch, Recommended 17" Size Tire
215/45/17 - Larger Contact Patch, Overall Diameter is Larger
225/40/17 - Even Larger Contact Patch, Very Limited Selection of Brands
------------------------------------------------------------------------
215/35/18 - Larger Contact Patch, Small Profile means Less Protection for Wheels
215/40/18 - Larger Contact Patch, Overall Diameter is Larger
225/35/18 - Even Larger Contact Patch, Recommended tire size for 18x7.5" with at least a +48mm offset
225/40/18 - Even Larger Contact Patch, Overall Diameter is Larger, Not Recommended if car is Lowered
------------------------------------------------------------------------
215/35/19 - Large contact patch, recommended 19" tyre

(Try as I might, I've not found anybody running any other size without drama)




4th Generation (1992-1996)

205/55/15 - Stock Size, Recommended 15" Size Tire
205/50/15 - Better Acceleration, Overall Diameter is Smaller
215/50/15 - Larger Contact Patch, Better Acceleration, Overall Diameter is Smaller
225/45/15 - Even Larger Contact Patch, Minimum of 7" wide wheel is recommended, Overall Diameter is Smaller
225/50/15 - Even Larger Contact Patch, Minimum of 7" wide wheel is Recommended
------------------------------------------------------------------------
205/50/16 - Recommended 16" Size Tire
215/45/16 - Larger Contact Patch
215/50/16 - Larger Contact Patch, Overall Diameter is Larger
225/45/16 - Even Larger Contact Patch, Minimum of 7" wide wheel is Recommended
------------------------------------------------------------------------
205/40/17 - Overall Diameter is Smaller, Not Recommended w/ 7.5" wide or larger wheel
215/40/17 - Larger Contact Patch, Recommended 17" Size Tire
215/45/17 - Larger Contact Patch, Overall Diameter is Larger
225/40/17 - Even Larger Contact Patch, Very Limited Selection of Brands
------------------------------------------------------------------------
215/35/18 - Larger Contact Patch, Small Profile means Less Protection for Wheels
215/40/18 - Larger Contact Patch, Overall Diameter is Larger
225/35/18 - Even Larger Contact Patch, Recommended tire size for 18x7.5" with at least a +48mm offset
225/40/18 - Even Larger Contact Patch, Overall Diameter is Larger, Not Recommended if car is Lowered


3rd Generation (1988-1991)

195/60/14 - Stock Size
205/55/14 - Larger Contact Patch, Overall Diameter is Smaller
------------------------------------------------------------------------
205/50/15 - Larger Contact Patch
------------------------------------------------------------------------
215/45/16 - Even Larger Contact Patch, Overall Diameter is Larger
------------------------------------------------------------------------
205/40/17 - Larger Contact Patch


Offset


4th & 5th Gen. Stock = 6.5" Wide Wheel w/ +55mm
3rd Generation Stock = 5.5" Wide Wheel w/ +45mm


6.5" Wide Wheels w/ 4th & 5th Gen

Less than +38mm ::: You take the chance of rubbing the outside lip of the wheel well.
+38mm to +55mm ::: You shouldn't have any problems. Recommended Offsets for 6.5" Wide Wheels.
Larger than +55mm ::: You take the chance of rubbing the inside lining of the wheel well.


7" Wide Wheels w/ 4th & 5th Gen

Less than +38mm ::: Not Recommended
+38mm to +41mm ::: Not Recommended if you are, or plan to be, lowered. You take the chance of rubbing the outside lip of the wheel well.
+42mm to +44mm ::: This is a grey area if you are lowered, results vary depending on tire and/or drop. You take the chance of rubbing the outside lip of the wheel well.
+45mm to +50mm ::: You shouldn't have any problems. Recommended Offsets for 7" Wide Wheels.
Larger than +51mm ::: Not Recommend. You take the chance of rubbing the inside lining of the wheel well.


7.5" Wide Wheels w/ 4th & 5th Gen

Less than +40mm ::: Not Recommended
+40mm to +43mm ::: Not Recommended if you are, or plan to be, lowered. You take the chance of rubbing the outside lip of the wheel well. Wouldn't recommend using any tire with an overall diameter larger than stock and/or with a tire width larger than 215.
+44mm to +47mm ::: This is a grey area if you are lowered, results vary depending on tire and/or drop. You take the chance of rubbing the outside lip of the wheel well. Wouldn't recommend using a tire with an overall diameter more than slightly larger than stock, you chances of rubbing increase.
+48mm to +52mm ::: You shouldn't have any problems. Recommended Offsets for 7.5" Wide Wheels.
Larger than +53mm ::: Not Recommend. You take the chance of rubbing the inside lining of the wheel well.


8" Wide Wheels w/ 4th & 5th Gen

Some have had success with offset of +45, but not many ::: Tyre size is very dependant on whether or not this will work.

If unsure, use the offset calculator. ---> http://www.1010tires.com/WheelOffsetCalculator.asp


Stock Bolt Pattern

5th Generation ::: 5x114.3
4th Generation ::: 4x114.3
3rd Generation ::: 4x100


Will it throw my speedo out?

circumference = pi*d
circumference = pi*(wheel diameter in inches*0.0254+2*tyre width in mm*aspect ratio/100000)
circumference = pi*(16*0.0254+2*205*50/100000)
circumference = 1.921 m

Then work out the new circumference, devide old by new, multiply by 100 and that is your actual speed at the indicated speed of 100km/h (then convert to imperial, since I'm not sure if the forumla works in feet/miles)

Or use this ---> http://www.miata.net/garage/tirecalc.html


Wanna see some different wheels on your car? Try these

http://www.discounttiredirect.com/direct/interactive.do
http://www.bobjane.com.au/Wheels/VirtualWheels.asp

[THE ONE]

great man! I needed to know my options and you've just let me know without doing much searching lol.

[jesseunvoas]

thanks for that one it's been stickied

[THE ONE]

thanks for that one it's been stickied

good!

[Si Speed]

225/40/18 - Even Larger Contact Patch, Overall Diameter is Larger, Not Recommended if car is Lowered

That's what I just switched to :D. I still wanna lower ir and get it back to stock height. Now I feel like I'm getin out of a monster truck.

[sleepyH22]

i slammed my 3rd gen when it had 18"adr spec r pros's on it and i broke 2 wheels being a dumba**

[ogsmakdade]

I have a 5th gen w/ 18x7.5" rims w/ a +43 offset, and it's lowered 2 inches. NOTHING RUBS!

[StreetCatalyst]

damn dude. thank you. thank you. thank you. i can build a bigger brake kit off of this.

[jdm bb6]

i kid you not, i have been looking for this for the past couple days

[ogsmakdade]

well I see you found it!

[2000luderacer]

Is there anyway to increase your offset? Just bought some Enkei Evo 5 17x7 with +42 offset and 215/40/17 tires. I am planning to lower my car atlease 2". Will rubbing be consider an issue...since those wheels only comes with an offset of +42.

[3rdGenCrazy]

i like this thread!.. i like it A LOT!.. nice to see all my options at once!

[gillywig2]

Great Help

[mckillio]

First of all, I have always had trouble corresponding tire sizes to wheels sizes. Would 17x8 wheels fit on a 5th gen, I assume those would be 225/40/17 correct? What kind of profile is that as opposed to stock? Also, I have no idea what offset means.

[Brash22]

Offset is the distance the wheel sits out from the hub (or something like that) High offsets have wheels that sit well inside the guards, low offsets have them sitting out flush. On the VIP cars such as Toyota Celsiors, etc they have deep dish rims sitting flush with the guards (or even past it!) often with 10 or 15 offsets for example.

According to guide in the first post an 8inch wide rim may or may not work without your guards being rolled or lipped. However when I get some time I'll do a bit of searching and will update that post, since it has been around largely without change for a number of years.

The 225 of your 225/40 profile is the width of the tyre in mm, and equates to 8 and 109/127 inches (8.85 inches). Again, according to the guide in post #1 this will work, but 215/40 is the reccommended size.

[Brash22]

Bump. Added interesting stuff to the first page.

[99PreludeSh]

Offset is the distance the wheel sits out from the hub (or something like that) High offsets have wheels that sit well inside the guards, low offsets have them sitting out flush. On the VIP cars such as Toyota Celsiors, etc they have deep dish rims sitting flush with the guards (or even past it!) often with 10 or 15 offsets for example.

.

this picture helped me fully understand offsets



http://coolcarrims.com/wp-content/uploads/2007/04/windowslivewriterwheelcustomization-bc60customwheels-graph11.gif

[Brash22]

Bump. Added more useful stuff. Enjoy.
:beerchug:
:slug:
:llama:
:popworm:

[99PreludeSh]

whoops never even saw this but thank for the rep snake! haha