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Discussion Starter · #1 · (Edited)
Found a very good deal but I am not sure if they will fit.

Volk GT-F (2 piece)
18x7.5 / ET+40
4x100 / 23lbs
225/40 18" Tires
For $400

Now using the calculator online I can see these tires are too wide.
  • Inside: 20 mm (0.8'') closer to suspension/brakes
  • Outside: will stick out 30 mm (1.2'')

If I switch to 205/40 18" tires I get the following:
  • Inside: 10 mm (0.4'') closer to suspension/brakes
  • Outside: will stick out 20 mm (0.8'') farther
Do you think that will work? I have no experience at this and My iQ is in transit so I can't measure yet. Even if they fit do you think 23lbs is too heavy? Thanks for any info!


Rim/Tire Calc:
Custom rims, wheel tire packages for your ride - RIMSnTIRES.com

Volk GT-F:
 

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http://www.iq-forums.com/forums/wheels-tires-suspension/1125-get-low.html

They will fit. I have 245/40/18 on mine and lowering springs... and they still fit. If you are not going lower you will have no problems... If you do go lower there's a chance your tire will rub your fenders on a big bump, but it has to be a nasty one. If you go with a narrower tire and stretch it this could be avoided I suppose... It's only something you have to worry about if you are planning to use lowering springs in the future.
 

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Discussion Starter · #3 ·
Great thanks! Never thought I would have rims bought before the car even got here. Now springs are on my short list to get the nice stance like you have Vancouver!
 

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If you are going to get the same springs, I would look into possibly getting a stretched tire. If I hit a big bump my tire rums the lip of the fender. The springs are stiff enough that it's usually not a problem, but my wheels are not tucked... a stretched tire would possibly curve at the wall enough to miss the fender.

The back isn't too much of a problem, but the front sticks out a little further....

If you are getting rims that already have tires (like I did) then just go with it and see how it works out for you... but when it comes times to buy a set you will want to ponder your options further.

And as I said... if you don't have the springs on yet, there are no issues... the IQ sits super high and the wheel wells are very big. The stock wheel is only 5" wide, not because bigger wheels couldn't fit, but just because Toyota decided to put that size on I guess.
 

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Discussion Starter · #5 ·
Bad news, Good News. Bad news the Volks ended up being replicas. Good news I figured it out before buying them! So the wheel search continues.

Tire Wheel Automotive tire Light Tread Tire Wheel Automotive tire Car Motor vehicle
 

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if this can help you: the good tires dimmension for IQ:


16 pouces
175/60R16 86 EL
185/55R16 83
185/55R16 87 EL
195/55R16 87
195/55R16 91 EL
205/50R16 87
205/50R16 91 EL
215/50R16 90
215/50R16 94 EL
255/40R16 92

17 pouces
185/50R17 86 EL
205/45R17 84
205/45R17 88 EL
225/40R17 86
225/40R17 90 EL
235/40R17 90
235/40R17 94 EL
265/35R17 92

18 pouces
205/40R18 82
205/40R18 86 EL
225/35R18 83
225/35R18 87 EL
235/35R18 86
235/35R18 90 EL
255/30R18 90 EL
265/30R18 88

19 pouces
225/30R19 84 EL

 
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