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sl0ride · 01-22-2013, 08:06 AM

I need front tires on my 03 330xi and i would like to upgrade to a 225/45/17's over the stock 205/50/17's. The issue is i have a 3 month old rear right and the rear left has more than 50% in 205's and would hate to ditch them. Accoridng to tire calcuators the 225s 24.97 dia and 205s are 25.07 dia. This would be .2 MPH diffrence at 60mph. Would it be a bad idea to place the two new wider & tallertires in the front only or should i really go and spend the extra ~$300 for all 4 new and eat tossing the 3 month old rear tire. How touchy is this GM transaxle? Thanks.

01-22-2013, 08:06 AM	#1
sl0ride Registered User Join Date: Nov 2012 Location: Waldorf MD Posts: 5 My Ride: 330xi,e30,2002lemons View My Garage	330xi tire mixing I need front tires on my 03 330xi and i would like to upgrade to a 225/45/17's over the stock 205/50/17's. The issue is i have a 3 month old rear right and the rear left has more than 50% in 205's and would hate to ditch them. Accoridng to tire calcuators the 225s 24.97 dia and 205s are 25.07 dia. This would be .2 MPH diffrence at 60mph. Would it be a bad idea to place the two new wider & tallertires in the front only or should i really go and spend the extra ~$300 for all 4 new and eat tossing the 3 month old rear tire. How touchy is this GM transaxle? Thanks.