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View Full Version : Usefull Wheel Information - Offsets, Widths etc...



barefootbonzai
04-05-2007, 02:36 PM
Found this website on wheel terminology, lots of useful info in there.

https://www.rsracing.com/tech-wheel.html

here's an extract.

https://www.rsracing.com/images/tech-wheelfit1.gif
Measuring Wheel Offset

To calculate offset you'll need the following measurements:
https://www.rsracing.com/_themes/rstheme1/abstrbu1.gifWheel backspace
https://www.rsracing.com/_themes/rstheme1/abstrbu1.gifWheel Width
https://www.rsracing.com/_themes/rstheme1/abstrbu1.gifWheel Center line (outboard flange to inboard flange measurement / 2)
Subtract:
https://www.rsracing.com/_themes/rstheme1/abstrbu1.gifWheel center line from Wheel backspace to get offset.
https://www.rsracing.com/_themes/rstheme1/abstrbu2.gifIf backspace is less than the wheel centerline the offset is negative
https://www.rsracing.com/_themes/rstheme1/abstrbu2.gifIf backspace is greater than the wheel centerline the offset is positive
Tip:
https://www.rsracing.com/_themes/rstheme1/abstrbu1.gifTo convert from inches to mm multiply by 25.4
https://www.rsracing.com/_themes/rstheme1/abstrbu1.gifTo convert from mm to inches divide by 25.4

bennjamin
04-05-2007, 03:26 PM
good link - but its already covered indepth in the

Suspension / Handling Fequently Asked Questions (http://www.ozhonda.com/forum/showthread.php?t=31014)