Thread: Wheel Size
View Single Post
Old 07-24-2011, 07:55 AM   #4
thstone
Certified Boxster Addict
 
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
You'll commonly see the German abbreviation for offset, ET or et. The diameter and width of a wheel are in inches while the offset is in millimeters. For example, 18x8.5 et 45 is a 18" diameter, 8.5" wide wheel with 45mm offset.
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
thstone is offline   Reply With Quote