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15x7 +30 Rota RB wheels- Will they fit?

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#1
Been looking around for wheels and I'm leaning towards a set of Konig Dekagrams 16x8 +40 because of the size, weight, and tire options available in that size.
I'd like to try something different similar to this type of wheel, but not sure +30 offset is reasonable on a FiST. Would a set of spacers do the trick or am I making this more difficult that it should be? Anyone running this wheel on their Fiesta?




https://www.ebay.com/itm/15X7-30-ROTA-RB-4X108-HYPER-BLACK-RIMS-WHEELS-FITS-ALFA-ROMEO-GTV-SPIDER/112545937926?hash=item1a3442ba06:g:q6UAAOSwRJ1Zpyqf
 


alexrex20

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#2
For proper "stance" those wheels would want about 15mm of spacer. As a stackable spacer, I would not recommend it. If you can find a bolt-on spacer/adapter then it would be fine, but at that point you may as well adapt your lug pattern to 4x100. At only +30 you may have clearance issues at the brakes, and almost certainly on the front inner fenders/frame at full lock.
 


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#3
For proper "stance" those wheels would want about 15mm of spacer. As a stackable spacer, I would not recommend it. If you can find a bolt-on spacer/adapter then it would be fine, but at that point you may as well adapt your lug pattern to 4x100. At only +30 you may have clearance issues at the brakes, and almost certainly on the front inner fenders/frame at full lock.
Most of this is wrong. At +30 they will already poke. You have your offset positions backward.

+30 with a +15 spacer yields an et of +15.

You may be OK with 16x7 +30 but 16x8 greater than +35 is going to be a tough fit without some stretch and negative camber.
 


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#4
Most of this is wrong. At +30 they will already poke. You have your offset positions backward.

+30 with a +15 spacer yields an et of +15.

You may be OK with 16x7 +30 but 16x8 greater than +35 is going to be a tough fit without some stretch and negative camber.
Sorry I ment 15x7 there, doesn't really matter.
 


Woods247

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#6
Most of this is wrong. At +30 they will already poke. You have your offset positions backward.

+30 with a +15 spacer yields an et of +15.

You may be OK with 16x7 +30 but 16x8 greater than +35 is going to be a tough fit without some stretch and negative camber.
I’ve been thinking about having a set of custom 17x7.5 et30 wheels built to clear my BBK. This is helpful, thank you.

Currently I’m running 17x7 et42 with a 12mm spacer (to clear BBK) and I rub in the front when I bottom out. Tires are 215/40-17 RT615K+ and camber -1.6 (front/rear). I increase compression on my coilovers before I hit the track and it’s helped. My tires have punched the fenders out a little too ha! Your post makes me think what I’m looking to do might *not work.
 


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#7
You need to watch out. What you are saying will only make things worse. Currently with your spacers you're essentially at 17x7 et30. Going 17x7.5 will add a tad over 6.35mm to each side of your wheel. This will create more rub not less. I think you will be much safer going with a higher offset 17x7.5. Something like +40. That way you can use small spacers to give yourself the perfect fit.
Look at something like XXR 527s with big concave to clear big brakes.
 


Woods247

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#8
You need to watch out. What you are saying will only make things worse. Currently with your spacers you're essentially at 17x7 et30. Going 17x7.5 will add a tad over 6.35mm to each side of your wheel. This will create more rub not less. I think you will be much safer going with a higher offset 17x7.5. Something like +40. That way you can use small spacers to give yourself the perfect fit.
Look at something like XXR 527s with big concave to clear big brakes.
My bad. A key work was left out by me or autocorrect. I meant *not* fit.. Thx!
 


M-Sport fan

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#9
I've never seen a pic, let alone a live FiST with Minilite style/replica wheels on it.

I'd be curious to see what that looks like. ;)
 


OP
Pura_Fiesta
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Thread Starter #11
Thanks for all the replies. This is turning out to be a useful thread. I haven't really given the 4x100 conversion much thought but I think it's a viable option. I'll be looking into that more after this.

Thanks again.
 


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