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Wheel Offset question?


phil369x
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Looking to buy a new set of wheels and tires after I lower my Manta A about an 1". 

I'm thinking 15"x7"for the wheels.

 

The question is what tire size AND offset on the wheel should I ask for when ordering?

I don't want guesses; I need a definitive answer since this is a large outlay of cash and it needs to be right the first time.

 

Thank you for any help

Edited by phil369x
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Good off set for the a series is what was fitted on the sport versions. 13x7 et20 ats classics. a 15x7 et 20 will fit nicely with 205 50 15 tyres.  I have 8x13 ats classics et00 they will stick out on standard arches with 205 60 13 tyres. If you download the tyre and wheel conversion app you can play with off sets. 

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This is what im running on my A series with lowered suspension.

and the tyres are 205 x 50 x 15. I did fold the rear arch lip and you might find on full lock revering sometimes they will catch on the front lower valance, so i had to fold the lip on that up a bit to clear. Depends on how low it is and you probably wont know until you fit the wheels and try.

HPIM1340-scaled.jpg

220520121585.jpg

EFFECTS-1-scaled.jpg

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Where would I find the tyre and wheel conversion app? I know nothing about "off set" or as some call it "back spacing" (if they are even the same thing).

 

Thank you!
 

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Looks like they do them with a 27 offset

https://www.fitmentindustries.com/buy-wheel-offset/1570BYM274100B57/beyern-mesh-15x7-27

If you can get the full spec they should give you the distance from the back of the wheel (the face that goes against you hub/disc face) to the outer lip. Then you can measure and see where the wheel outer will come in relation to the inner of your front or rear wing.

For the offset, you basically thake the centre of the wheel if you look at it end on (see pic below) If there is zero offset when you bolt the wheel to your hub you will have 50% inside and 50% outside. A plus offset moves the wheel face out meaning the wheel when bolted on will have a bigger portion of the wheel inside the arch and the for a negative offset more of the wheel outside.

You ideally need to measurements to check the setup if you have no way to test fit one.

 

Andy

 

 

 

ezgif.com-gif-maker (1).jpg

Edited by 611
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1 hour ago, phil369x said:

Thanks, this helps alot!

No problem.

You can always spacer out a little if they sit in too far in but if they stick out to far you are stuck!!

Are you going discs on the rear? as i had to use longer wheel studs on mine as the standard are quite short if you have added rear discs.

They are quite easy to swap and i think this is the spec for them. Im sure someone else can confirm or i can check the original invoice.

M12 x 1.5
14.3mm spline, 51mm long
 
Andy
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8 hours ago, 611 said:

No problem.

You can always spacer out a little if they sit in too far in but if they stick out to far you are stuck!!

Are you going discs on the rear? as i had to use longer wheel studs on mine as the standard are quite short if you have added rear discs.

They are quite easy to swap and i think this is the spec for them. Im sure someone else can confirm or i can check the original invoice.

M12 x 1.5
14.3mm spline, 51mm long
 
Andy

Yeah, you are right on wheel studs. I got them from rally shop on eBay, fit Escorts too

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2 hours ago, Jessopia74 said:

Yeah, you are right on wheel studs. I got them from rally shop on eBay, fit Escorts too

I thought they were the same as a ford fitting. Handy as easier to get than if they were just manta specific 🙂

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