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Discussion Starter #1
Hi

I've recently bought Kia Pro Cee'd 2009 1.6 petrol.

The Pro Cee'd has got 17 inch alloy wheels from new. Tyre size is 225/45 R17

I am not fan of 17 inch alloys as the ride is much less comfortable compared to 16 or 15 inch alloys.

I can get from my friend 16 inch alloys (tyre size is 205/55 R16) but those are from Kia Ceed model 2015.

Would they fit to my Kia Pro Cee'd???

The sizing for Kia Pro Cee'd 2008-2012 is:

R15 185/65 (5.5J x 15 5x114.3 d67.1 ET47.0)
R15 195/65 (5.5J x 15 5x114.3 d67.1 ET45.0)
R16 205/55 (6.0J x 16 5x114.3 d67.1 ET51.0)
R17 225/45 (7,0J x 17 5x114.3 d67.1 ET56.0)
R18 225/40

The sizing of 16 inch for Kia 2015 I think is 6.5 x 16 5x114.3 ET51

In my point of view the only difference is the 6.0j v 6.5j.

Can someone help me to understand this?

thank you
 

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The J value is rim width. TheET value is the amount of "offset" of the rim. The d67.1 is the diameter of the center hole of the rim. The biggest thing that would be of concern is if the smaller diameter rims will clear over the brake calipers and easiest to just try putting them on without forcing the rim and looking that there is room between it and brake caliper.
 

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Discussion Starter #4
The factory values for Kia Pro Ceed 2009 are: R16 205/55 (6.0J x 16 5x114.3 d67.1 ET51.0)

Currently I do have the 17 inch alloy which is also factory fitted from new and the factory values are: R17 225/45 (7,0J x 17 5x114.3 d67.1 ET56.0) (taken from the Kia manual that I did get with the car)

I just do not get why in the Kia manual they did not put that rim R16 6.5j x 16 5 x 114.3 d67.1 ET51 can be used? Seems odd for me. Is it because they did not want people to buy aftermarket rims that mainly are 6.5j?

In the current Kia Ceed and Pro Ceed the rims are R16 6.5J x 16 5 x 114.3 d67.1 ET51.

I used the calculator at wheel-size dot com/calc

and the values are better than compared with the 17 inch.

I would like to try the 6.5j rims to see. the issue is that I am going to buy them online so trying might not be an option.

thank you for all your replies. Great Forum!
 

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Discussion Starter #5
I have change the original 17 inch alloys to 16 inch alloys from Kia Ceed 2015, size 6.5 x 16 5x114.3 ET51

The alloys fit well, no issue.

The drive is significantly much more comfortable on the 16 inch wheels compared with the 17 inch.


In my opinion the difference is massive. The Kia Pro Ceed on the 16 inch alloys is easier to control, potholes are less noticeable and motorway cruising is quieter. Obviously it could also be that the tyres are better and nearly new (Michelin Primacy).
 
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