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I have a 2011 A4 tdi fited with 225 x 50 R17 tyres. Could I change these tyres to 235 x 45 R17 on the same rims ??
What is the relationship between rim size and tyre size ?
dolcevita4 Audi Nut
Joined: Jan 14, 2011
Posts: 97
Location: co. Durham
Posted:
Wed Feb 01, 2012 11:38 am
yes you can, i have 235/45/17 on my 17inch alloys, you shouldnt feel any difference in driving, sometimes i put 225/45/17 on aswell depending which tyres i can get for better price.
_________________ Audi A4 B6 2002 1.9 TDi
GJR Camped on the site
Joined: May 12, 2007
Posts: 343
Location: Bristol
Posted:
Wed Feb 01, 2012 1:27 pm
Try this :http://www.miata.net/garage/tirecalc.html
Going to from 225/50/17 to 235/45/17 gives approx reduction of 2% in circumsphere. This means at the same engine rpm you will go 2% slower and your speedo will indicate 2% too much speed.
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