Technical 15mm spacers on front?
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Technical 15mm spacers on front?
Don't know the answer to your question, but a few words of caution.
Moving the wheel outwards may cause conflicts between tyre and bodywork, when steering or on suspension travel, which is why you are asking the question.
Another consideration is are you moving the wheel centreline in relation to the wheel bearings. Nominally, the centreline of the wheel will be near the centreline of the bearings, to properly support the car. A 15mm spacer on the standard wheels will move the wheel outwards by that amount, so that the centreline of the wheel is now 15mm outside the centreline of the bearings. This may cause rapid wear to the bearings, and may cause stress to CV joint and hub as well if worn bearings are not replaced in time. It is therefore possible to create an ongoing regular replacement cycle.
If the new wheel is 30mm wider than original, with the same mounting offset, then 15mm spacers will place its centreline in the right place, leaving you to consider just the clearance issues.
If the new wheels have a different offset, this may change the calculation.
Good luck.
Moving the wheel outwards may cause conflicts between tyre and bodywork, when steering or on suspension travel, which is why you are asking the question.
Another consideration is are you moving the wheel centreline in relation to the wheel bearings. Nominally, the centreline of the wheel will be near the centreline of the bearings, to properly support the car. A 15mm spacer on the standard wheels will move the wheel outwards by that amount, so that the centreline of the wheel is now 15mm outside the centreline of the bearings. This may cause rapid wear to the bearings, and may cause stress to CV joint and hub as well if worn bearings are not replaced in time. It is therefore possible to create an ongoing regular replacement cycle.
If the new wheel is 30mm wider than original, with the same mounting offset, then 15mm spacers will place its centreline in the right place, leaving you to consider just the clearance issues.
If the new wheels have a different offset, this may change the calculation.
Good luck.
I was told to go at an absolute maximum 8 on the front with 17"
OP
OP
Thanks for the explanation mate. Really detailed, although I do need to learn what offsets are etc! Everytime I modify things I learn about it, yet everytime still I end up having to learn it again haha. But thanks, appreciate the explanation!
@SJB1985 okay mate cheers! just wondering if BenYoung has 15mm on thefront?
@SJB1985 okay mate cheers! just wondering if BenYoung has 15mm on thefront?
Nope 30mm all round for me.
But my wheels have a higher stock offset. With all of my spacers my specs are 17x8J et30 all round.
What's the offset of the stock sporting alloy?
But my wheels have a higher stock offset. With all of my spacers my specs are 17x8J et30 all round.
What's the offset of the stock sporting alloy?
OP
OP
Thanks mate, not sure on the offset, maybe someone can confirm? In the meantime ill try and find out.
Can't find anything on here, or am I blind?
Infact, these are the spacers:
http://www.ebay.co.uk/itm/321103978135?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Can't find anything on here, or am I blind?
Infact, these are the spacers:
http://www.ebay.co.uk/itm/321103978135?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
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OP
OP
The spacers state centre bore of 56.1? If that helps at all? Still not sure on the offset
Can imagine the offset of the sporting alloys is around 40
So with the spacers will sit at about et25 and on a 7J wheel that would sit ok
So with the spacers will sit at about et25 and on a 7J wheel that would sit ok
OP
OP
Right okay mate thanks! And you say you've had no issues? Extra wear on cv joints etc etc?
OP
OP
Can imagine the offset of the sporting alloys is around 40
So with the spacers will sit at about et25 and on a 7J wheel that would sit ok
Not sure about your sums here.
Offset is how far the mounting face is from the centreline of the wheel. So a 40 mm offset puts the mounting face 40mm outwards from the wheel centreline. A smaller offset moves the wheel inwards, larger offset, outwards.
Any spacer on the mounting face of the hub will move the wheel outwards, increasing the offset. So a 40mm spacer will move the wheel out by 40mm.
You need to know the width of both old and nee wheels and their offsets before calculating what if any spacer is needed.
Due to me having 8J wheels it pokes a little but I camber them.
Here's what you want to know. Fit the spacers. Don't worry. I can promise you everything will be fine... Simple as that honestly i sit with a wider setup and have no problems other than a little rubbing here and there but I'm lower than you
Here's what you want to know. Fit the spacers. Don't worry. I can promise you everything will be fine... Simple as that
honestly i sit with a wider setup and have no problems other than a little rubbing here and there but I'm lower than you
The lower the offset the more the wheel is pushed out. Offset is measured in mm. So are spacers. 40mm - 15mm = 25mm.
Due to me having 8J wheels it pokes a little but I camber them.
Here's what you want to know. Fit the spacers. Don't worry. I can promise you everything will be fine... Simple as that
"a little rubbing" Good grief! If the tyre is rubbing it will eventually wear through and go bang!
This is illegal because it is dangerous.
The vehicle manufacturer spends millions on research and development. You've spent 50p. Which do you think will work best?
OP
OP
@portland_bill I do appreciate your explanations but I think you may have got the wrong idea here. I'm not looking for spacers to allow the wheel to fit correctly, rather im looking to widen the stance of my car. My current wheels fit fine
@BenYoung okay mate ill stop worrying but what I do worry about is if yours sat flush before bolting on the wheels? I find it difficult to get it flat against the hub all the way round
@BenYoung okay mate ill stop worrying
but what I do worry about is if yours sat flush before bolting on the wheels? I find it difficult to get it flat against the hub all the way round
A lower offset on the wheel will move the wheel out, agreed. The spacer has to be added to the offset, it cannot move the wheel inwards, so a subtraction is nonsense. Any spacer will not change the wheel offset. No wonder your wheels rub.
I spent more than 50p getting the stance I have. Custom made spacers by RH that cost £200 then camber shims, another £50 and if you count the wheel and tyre setup that's another 800. so go complain to someone who cares what you think, my car is fine and it looks how I want it to look.
And your totally wrong about the offset and spacers. The offset it reduced by adding spacers it's simple logic :bang:
And sam, what do you mean? Is your spacer not sitting flat on the hub when all bolted up? That doesn't sound right what brand are the spacers?
@portland_bill I do appreciate your explanations but I think you may have got the wrong idea here. I'm not looking for spacers to allow the wheel to fit correctly, rather im looking to widen the stance of my car. My current wheels fit fine
@but what I do worry about is if yours sat flush before bolting on the wheels? I find it difficult to get it flat against the hub all the way round
First, just moving the wheels outwards will widen the car as desired, but will play havoc with steering and suspension angles. Effects could include lighter or heavier steering (heavier may cause issues with the power steering later, and with the ball joints), lower grip levels when cornering as the ackerman angle will be affected (This makes the wheels follow different lines in corners as they all follow a different curve.), handling issues over bumps as the wheels follow different paths than intended when the suspension compresses. Or it may all work ok. Moving the centreline of the wheel outwards will add stresses to the wheel bearings.
Secondly, most small Fiats have a 58.1mm centre hole. This fits snugly over the centre of the hub to locate the wheel centrally. This takes that job away from the wheelbolts. If your spacers have a 56.1 hole, this is too small and will not sit flush with the mounting face. That is why you cannot get them to sit flat, so you must not use these. If they were advertised for your Fiat, send them back for refund or replacement. You cannot drive around with wheels on a wobbly mounting, unless inside a circus ring.
Spent more than 50p on products, zero on R&D.
While you have tyres rubbing you are illegal and dangerous and have zero credibility.
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