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-   -   Can someone translate these wheel measurements to Back Space (https://www.lateral-g.net/forums/showthread.php?t=51231)

waynieZ 10-05-2015 05:43 PM
Can someone translate these wheel measurements to Back Space
 
Like the title says can someone translate these wheels to back space so I can figure spacers to use them for rollers? Or is there a conversion chart someone knows of?
The rear are 18x10 with a positive 42mm offset from center, the front are 18x8.5 with +36mm

My car is configured for 18X8 front and 19X12 rear both with 5" back space.

Thanks

1Bad68Cat 10-05-2015 07:34 PM
Quote:
Originally Posted by waynieZ (Post 618365)
Like the title says can someone translate these wheels to back space so I can figure spacers to use them for rollers? Or is there a conversion chart someone knows of?
The rear are 18x10 with a positive 42mm offset from center, the front are 18x8.5 with +36mm

My car is configured for 18X8 front and 19X12 rear both with 5" back space.

Thanks
I assume if you include the bead/lip of the wheel, the wheels are actually 11 and 9.5 wide. Therefore on the front the BS is 9.5/2+(36/25.4)=6.17. The rears are 11/2+(42/25.4)=7.15

kevin_l 10-05-2015 09:03 PM
CCW has a great little calculator

http://www.ccwheel.com/technical-converter.php

waynieZ 10-05-2015 09:05 PM
Thank you guys this stuff make my head spin.


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