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iq wheels


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can anybody tell me if any other toyota wheels fit an iq???

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Yes. Almost all 15 or 16" original Toyota wheels with 4x100 stud pattern will fit.

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I’ve got 17” 4x100 fitment alloys on my 2010 IQ

With 205/45/17 tyres 

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Was the car's MPG affected by the wider tyres Abdul?

Also, is the speedometer still reading accurately ?

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On 4/26/2024 at 9:25 PM, Antonio2 said:

 

Was the car's MPG affected by the wider tyres Abdul?

Also, is the speedometer still reading accurately ?

To answer your question, if my calculations are correct, a 175/65 R15 wheel+tyre has a total diameter of about 24.4 inches and a 205/45 R17 wheel+tyre has a total diameterof 24.1 inches.

So there is a small difference in diameter (approx 0.3 inches).

This results in the 17" wheel+tyre have a circumference which is 1" (2.5cm) greater that the 15" wheel+tyre.

Does this make any difference to the speedo and mileometer readings? Yes, of course. Does it amount to much? Well, there's a difference of about 6ft for every mile travelled. This is a difference of about 0.1%, so not much at all. If you travelled 50,000 miles with the larger wheels, the mileometer would be out by 50 miles, which is buggerall over that distance. And if you thought you were travelling at 70mph the speedo reading would be out by 0.1%.

...Unless my calculations are wrong, which they normally are :)

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The wider tyres add 24.5 mm to the circumference, or 1.3% in relative terms. In other words, your speedo will read 1.3% lower speed than previously, which is well within the typical 5-10% reading above actual speed of Toyota speedometers.

Fuel economy will suffer slightly from wider tyres but will also - to a very small degree - be offset by the longer circumference. 

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Many thanks for above info.

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