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Topic Review (Newest First)
06-13-2013 09:17 PM
dawhitesJKU Backspacing is the distance from the inside bolting surface of the wheel to the outer edge of the wheel from the inside point of view. Offset is the distance from the center of the wheel to the outer edges of the wheel...it plays a factor but not as much as bs. Offset is more for those import tuners looking for a flushed look.

With our jk, the most important is the backspacing. We have our rear links too close to the wheel as seen from my pic. If u go 5+ backspacing, ur not gonna need a lift but spacers to alleviate the problem. That's y the magic number is 4.5 or less, but I'm not saying 4.6 will not work....it's just a safety zone we have to play with.

Attachment 261094
06-13-2013 08:36 PM
Marmotte729 Thanks for the info dawhitesJKU!

I'm guessing that BSM means Back Spacing. If so, they offer one wheel with 4.5 inch and another with 5.25 inch (BSM). So there is an option for the JK, i.e. the 4.5in BSM (i.e. 4.5 backspace or less).


The table I believe converts BSM to Offset. Interestingly, the Fuel-Offroad specs show the 4.5in BSM has an offset of 1 while the 5.25’s offset is 20. Those numbers are +1 to what the table is showing. Am I reading that right? You’ve probably figured it out but the Boost is 8 in. in width.

Thanks again!
Mitch
06-13-2013 07:40 PM
dawhitesJKU and i hope this chart helps you.
06-13-2013 07:37 PM
dawhitesJKU i have fuel mavericks...i was gonna method 16s but opted for 17s instead.

anyways, your local shop doesn't specialize on jk's so he just gave a guesstimate. a wrong guesstimate.

15's will fit our vehicle as long as if its alloy and have correct backspacing...a correct backspacing 15 that is steel is iffy and may require grinding as your local shop said but not for the 16's.

our "sport" jk comes with 16's.

so to answer your question, 16's will fit...aluminum or steel w/ the correct 4.5 or less backspacing.

good luck and happy hunting.
06-13-2013 07:26 PM
Marmotte729
How to tell if 16 inch alloy wheels will fit stock JK?

I have a 2012 stock JK 2-door and would like to replace the steel wheels with Fuel-Offroad Boost wheels. Iíd like 16 inch but the local shop tells me that for some 16in alloy wheels to fit, you need to grind the calipers. ďItís safer to go with 17 inchĒ they tell me. Iím not sure if they want to play it safe or if they are pushing me towards the black 17 inch wheels they have in stock (they donít have the Boost in stock in any size).


Can I tell by the specs (offset, BSM, etc.) provided on the Fuel-Offroad web site if the 16 in. wheels will fit without any grinding?


Thanks!
Mitch

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