Back space to offset?

[Anthony k]

How do I translate bs to offset?


looking at XXR 556 or 521's

only listed in offset.

69 camaro

lowered 2" front with coils
lowered 2" rear with leafs.

17x8 and 17x9 tt2's on it now, no rubbing.
275/40 rear, 245/40 front

i believe it was 5" B's rear, 4.5bs front.

what offset's should I order?


How it sits now

https://static1.pt-content.com/images/pt/2016/06/photo1126-1.jpg (http://s272.photobucket.com/user/anthony_kujo/media/photo1-126.jpg.html)

[the owl]

nlmotoring.com lists all backspacing and offset for XXR wheels.

[Anthony k]

I see it now at the bottom after opening it. Lots of backspace.

Damn

[Schwartz Performance]

Most XXRs will require spacers.

0 offset on a wheel means the mounting pad is directly in the center of the wheel.

9.5" wheel is 10.5" overall.
0 offset on a 9.5 is 10.5/2 = 5.25" BS.

Positive offset adds to back spacing. +25mm offset is about 6.25" BS.

Hope that helps anyone else wondering :)

[mc84_zz4]

Here's the best wheel calculator I have seen, Offset in mm to BackSpace in inches is real easy.
https://www.rimsntires.com/specspro.jsp