use of "Wobble Bolts" to vary PCD
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Alfa Romeo Giulia Veloce
use of "Wobble Bolts" to vary PCD
quick question, has anyone here run wheels with a PCD of 114.3 using variable PCD bolts? (more commonly known as Wobble Bolts) just wondering what people's real world pros and cons have been?
did find this thread in a search, but not really much useful info there. thought maybe in the last decade there might have been people use these?
https://mbworld.org/forums/w211-amg/...r-e55-amg.html
thanks in advance.
did find this thread in a search, but not really much useful info there. thought maybe in the last decade there might have been people use these?
https://mbworld.org/forums/w211-amg/...r-e55-amg.html
thanks in advance.
Last edited by mondo; Sep 3, 2019 at 08:23 AM.
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2007 Mercedes E63 AMG
i've researched before...i believe the VW community has positive reviews the last time i searched.
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one thing i'll mention is that using 14mm to 12mm stud conversions eventually over the span of 3 years caused the threads of the 12mm side to stretch due to the weight of the car over time on my personal car. i had done this so i wouldn't have to buy 14mm lug nuts as i already had 12mm lug nuts.
if your wobble bolt shank is thicker than that of a 12mm bolt i'd say you would be ok, but just keep an eye on them as far as bolt stretch over time.
if your wobble bolt shank is thicker than that of a 12mm bolt i'd say you would be ok, but just keep an eye on them as far as bolt stretch over time.
Thread Starter
Senior Member
Joined: Aug 2017
Posts: 291
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From: Australia
Alfa Romeo Giulia Veloce
one thing i'll mention is that using 14mm to 12mm stud conversions eventually over the span of 3 years caused the threads of the 12mm side to stretch due to the weight of the car over time on my personal car. i had done this so i wouldn't have to buy 14mm lug nuts as i already had 12mm lug nuts.
if your wobble bolt shank is thicker than that of a 12mm bolt i'd say you would be ok, but just keep an eye on them as far as bolt stretch over time.
if your wobble bolt shank is thicker than that of a 12mm bolt i'd say you would be ok, but just keep an eye on them as far as bolt stretch over time.
the 14mm bolt is an issue that may rule out quite a few sets of wheels anyway as from what i have seen, 12mm is far more common.
good to hear from someone who has done it. thanks for the response.
as for Cryogenic treatment, i've not heard of that before?
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2005 e55 AMG
Cryo treatment is deep freezing, like 300* bellow zero and than a slow warm up. Changes the molecular structure of metal.
You can do anything, Connecting rods,ring and pinions, cranks,valves etc,etc. Any metal that needs to be stronger.
Nascar is big on this and I have used them as well.
Also "Wobble" is a little miss leading. All the bolt is doing is "off centering " it self. The wheel hub will keep the wheel centered... as does every wheel.
Although it is not the " correct " way to do things, it will work. Again I would treat the bolts just for a little extra and there should be no issue nor having to worry about bolt stretch.
You can do anything, Connecting rods,ring and pinions, cranks,valves etc,etc. Any metal that needs to be stronger.
Nascar is big on this and I have used them as well.
Also "Wobble" is a little miss leading. All the bolt is doing is "off centering " it self. The wheel hub will keep the wheel centered... as does every wheel.
Although it is not the " correct " way to do things, it will work. Again I would treat the bolts just for a little extra and there should be no issue nor having to worry about bolt stretch.
Last edited by SICAMG; Sep 4, 2019 at 12:49 PM.
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its off centering because the shank of the bolt is undersized allowing the seat to shift 1.5mm (generally) in either direction.
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From: Australia
Alfa Romeo Giulia Veloce
as for trusting wobble bolts being a dumb idea, they fit the wheel to your car in exactly the same way your standard lug bolts do. there's no difference in how they apply clamping force the wheel. the positioning of the wheel on the hub is a combination of the hub centric hole in the wheel centre plus the tapered holes for the lug bolts. the floating washer adjusts to fit the taper in the wheel. what they do allow is for the bolt to be off centre in the holes.
as for the comment about properly sized bolts, i don't think you understand what they are? they are properly sized. they just allow for fitment of a wheel with non-standard PCD.
Last edited by mondo; Sep 4, 2019 at 10:52 PM.
