Thierry_Ng

Hi all. The package i got came with 18" wheels. 245/40/R18. I am wondering if i can put the 17" same as the Komfort package on this car? 225/50/r17? Will it affect the breaks or anything else?

Thanks.

a4audi4fun

Tire size calculator - Click Here

Use this link to compare the rolling circumference. The 17" tire you indicate would mean your speedo reads faster than actual. Clearance for the brake caliper is a function of the design of the rim. The 17" equivalent for your tire is 245/50x17.

Thierry_Ng

Hey, thanks! That would mean the 225/50 r17 is wrong for my car am i right?



Tire Size Comparison
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
245/40-18 3.9in 12.9in 25.7in 80.8in 784 0.0%
225/50-17 4.4in 12.9in 25.9in 81.2in 780 0.6%
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a4audi4fun

It's a minor difference so over to you how close you want to get - as I said caliper clearance is likely more of a concern. No other concerns - lower profile tires tend to handle better but have a harsher ride as a result of the reduced sidewall. Many folks use a narrower tire for winters because they cut through snow a little easier. All depends on what you are wanting to achieve.