Backspacing vs Offset
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From: Texas
Car: 1992 Z28
Engine: 5.7L TPI
Transmission: 700R4
Backspacing vs Offset
Looking at picking up some new XXR 555s and was confused by the measurements on the site. It's showing 18x10s with a +25mm offset, but under the specs it has a 6.48bs shown. 25mm is about an inch so wouldn't that give it a bs of 6"? Or is the 10" width not including the rim flange? Just trying to figure out what size adapter I'll need to run but that was throwing me off. Thanks in advance for any help.
Joined: Aug 2006
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Backspacing vs Offset
Need to include the rim flange as you called it. Usually add 1" to the advertised width of any wheel.
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