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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > tracking with 19 inch rims



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Wheel offset calculator courtesy of BimmerPost.com. You may use this calculator to calculate what tire sizes you might need if you upgrade your tires, or what wheel sizes/offsets are compatible with your car.
    Current Wheel Width  inches             Current Wheel Offset  mm.
         New Wheel Width  inches                  New Wheel Offset  mm.
 
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ORIGINAL TIRES
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Based on your stock wheel setup, your new wheel will have:
Original Tires Diameter (in.)
      New Tires Diameter (in.)
  Difference in diameter (in.)
           Percent Difference %
                     
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      04-28-2008, 10:01 AM   #1
ngewe
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tracking with 19 inch rims

guys will tracking with 19 inch rims really affect your lap time alot?

other than the weight what are the other factors?

please advise

thanks
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      04-28-2008, 11:01 AM   #2
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Yes it will affect your lap times compared to 18" or 17" options. Exactly how much, I do not know. The larger the rim in diameter, the higher the rolling resistance is for the wheel. You can try to minimize the effects by running the lightest (& strongest) rims you can buy.

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      04-28-2008, 12:05 PM   #3
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You'll also face a limited selection of rubber VS 18".
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