View Single Post
      10-05-2012, 06:22 PM   #7
EnerJi
Second Lieutenant
United_States
15
Rep
272
Posts

Drives: '13 BMW 335i M-Sport EB-II
Join Date: Aug 2012
Location: North Texas

iTrader: (0)

Just be warned, assuming the diameter of your new tires is roughly equal to the difference between the 18" and 20" wheels (1/9 larger), then your speed (and the trip meter and odometer) will be approximately 90% of the true value. Your speed will show 65 when in actuality you're going about 72.
Appreciate 0