I suck and understanding offset,backspacing, anything to do with wheels!!! [Archive]

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cgtuned

11-14-2014, 11:25 AM

Had to get on a tighter budget with a second baby on the way. I've been reading around and read bmw wheels fit on first gen camaro with little or no mods and was interested in some aftermarket bmw wheels for my 69 camaro would any of these fit? I'd really appreciate any help!!!
http://www.ebay.com/itm/381025399617?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
http://www.ebay.com/itm/331202716990?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
http://www.ebay.com/itm/151209310276?_trksid=p2060778.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Forgeline Wheels

11-14-2014, 12:23 PM

I'm not commenting on used BMW wheels from ebay, but this video might help you with the backspace/frontpsace/offset picture.

http://www.youtube.com/watch?v=2K1lUlv9ZOA

spacepirate

11-14-2014, 12:58 PM

Also, if you like the styles above a cheap alternative might be the TSW Nurburgring wheels.

http://www.americanmuscle.com/matte-gunmetal-nurburing-18x8-0512.html?utm_content=Wheel+-+TSW|TSW&utm_campaign=05%2B%20No%20Years&utm_source=Google-pla&utm_medium=Shopping&utm_term=&AMID=matte-gunmetal-nurburing-18x8-0512-GSNoFitmentV1

cgtuned

11-14-2014, 03:40 PM

I'm not commenting on used BMW wheels from ebay, but this video might help you with the backspace/frontpsace/offset picture.

http://www.youtube.com/watch?v=2K1lUlv9ZOA

Thank you!!!

cgtuned

11-14-2014, 03:40 PM

MonzaRacer

11-21-2014, 04:38 PM

Offset is based off of centerline of wheel width, back space is simply measuring from back of wheel lip to mounting pad.
Go look at rimsntires.com size comparer. Put in a size and off set and it will show you the back space, height, tread width, etc.

Forgeline Wheels

11-21-2014, 07:06 PM

Offset is based off of centerline of wheel width, back space is simply measuring from back of wheel lip to mounting pad.

Offset is the distance from the center to the mounting pad.

So a 18x11 inch wheel will be 12 inches wide with both inside and outside beads. So that will be a 6 inch center line. So if you measure a 6.5 inch backspace, then the mounting hub is 0.5 inches forward of the center line (6.5 - 6.0 = 0.5). So it is a +0.5 inch offset. But offset is typically expressed in millimeters. And there are 25.4mm per inch. So 0.5 inches x 25.4mm/in = +12.7mm.

ccmc

11-22-2014, 07:07 AM

America's tire has an m parallel look alike in the correct bolt pattern.