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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 > Upgrade from 156 to 161's



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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.
 
TIRE WIDTH
/
ASPECT RATIO
- WHEEL DIAMETER
ORIGINAL TIRES
/
NEW 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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      02-24-2006, 03:30 PM   #1
mreloc
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Upgrade from 156 to 161's

Searched, but couldn't find the answer-
I have a non-sp with 156's. I am planning to buy the staggered 161's- will that cause any offset issues for the rear of my non-sp car or are the hubs the same configuration as an sp car to start with? (in other words non sp car with staggered 161's looks the same as sp car with the staggered 161's )?
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      02-25-2006, 08:32 AM   #2
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bump... anyone know the answer to this? Bueler??
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      02-25-2006, 08:32 PM   #3
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You won't have any problems with them. The only difference is that visually your car will look slightly higher when sitting next to an SP car.
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      02-26-2006, 10:10 AM   #4
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Thanks Voltron. My concern was really about offset differences between a non sp and an sp car in the rear, i.e., is there something different about the rear end drivetrain of an sp car (wheel hubs distance to fender) than a non sp car that will affect the way the staggerd wheels will look?
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      02-26-2006, 06:15 PM   #5
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Absolutely nothing. In fact, there is no difference between a 325 and a 330 (SP and non-SP) offset.
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