What do do about 12mm vs 14mm lugs
#1
What do do about 12mm vs 14mm lugs
So I've had a set of 18" Exel TZ-10's laying around for MONTHS:
![](https://www.northamericanmotoring.com/gallery/data/500/medium/IMG_05945.jpg)
...that are just dying to be put on my car, but I have an R56. The TZ-10's are drilled for a 12mm lug bolt, but as we all know the R56 has 14mm.
I know this topic has been semi-discussed before, but I want some advice/help![Nod](https://www.northamericanmotoring.com/forums/images/smilies/nod.gif)
Originally I was just going to have the holes machined out to 14mm...simple. But upon further inspection, the tapered part of the stock lug bolts won't fit into the holes, even if they were drilled out to 14mm. So I'm guessing I'm going to have to go to a stud conversion kit. Which got me thinking, if I have to convert to studs, why don't I just get a 14mm->12mm stud kit, which I used to see around here. Interestingly enough I can't seem to find them anymore.
So I guess my question is what should I do? Should I:
A) Not have the wheels drilled, and try to find a 14->12mm stud kit. How safe are these anyway? I don't know if I trust them, and have heard never to run studs like this as they are weaker than if you were to just have a single sized stud...
B) Still have the wheels drilled and find a 14mm stud kit for them
Any advice would be appreciated.
![](https://www.northamericanmotoring.com/gallery/data/500/medium/IMG_05945.jpg)
...that are just dying to be put on my car, but I have an R56. The TZ-10's are drilled for a 12mm lug bolt, but as we all know the R56 has 14mm.
I know this topic has been semi-discussed before, but I want some advice/help
![Nod](https://www.northamericanmotoring.com/forums/images/smilies/nod.gif)
Originally I was just going to have the holes machined out to 14mm...simple. But upon further inspection, the tapered part of the stock lug bolts won't fit into the holes, even if they were drilled out to 14mm. So I'm guessing I'm going to have to go to a stud conversion kit. Which got me thinking, if I have to convert to studs, why don't I just get a 14mm->12mm stud kit, which I used to see around here. Interestingly enough I can't seem to find them anymore.
So I guess my question is what should I do? Should I:
A) Not have the wheels drilled, and try to find a 14->12mm stud kit. How safe are these anyway? I don't know if I trust them, and have heard never to run studs like this as they are weaker than if you were to just have a single sized stud...
B) Still have the wheels drilled and find a 14mm stud kit for them
Any advice would be appreciated.
#2
Personally, I'd tap em to 14mm and then get a set of aftermarket chrome lug bolts like those sold through discount tire direct. The cone seat is smaller than the oem bolts, making for a fit into the smaller holes.
http://www.discounttiredirect.com/di...riesWheels.jsp
But it's a personal choice and decision.
http://www.discounttiredirect.com/di...riesWheels.jsp
But it's a personal choice and decision.
#3
Personally, I'd tap em to 14mm and then get a set of aftermarket chrome lug bolts like those sold through discount tire direct. The cone seat is smaller than the oem bolts, making for a fit into the smaller holes.
http://www.discounttiredirect.com/di...riesWheels.jsp
But it's a personal choice and decision.
http://www.discounttiredirect.com/di...riesWheels.jsp
But it's a personal choice and decision.
#4
if you are looking for a 14mm to 12mm stud kit, Way Motor Works sells the TSW stud conversion kit. http://www.waymotorworks.com/m14-to-...rsion-kit.html
#5
Way lists the conversion kit: M14x1.25 to M12x1.5. I've been running these with 5mm spacers for about 6mths without issue.
Edit: Nice synchronized posting with minirage, no?
Edit: Nice synchronized posting with minirage, no?
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#9
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Aw man!
I just saw this thread yesterday and made me think: hey what about my nice SSR type-c wheels I picked up the other week. The previous owner said they were on a MINI and I saw looked like the fitment was a match.
However, I was caught out by the 14mm vs 12mm lugnut issue. I thought i had done all my homework yet you can see that I missed this critical piece of info.
Now I need to decide: keep them or get a stud conversion? Not sure which to do right now.
However, I was caught out by the 14mm vs 12mm lugnut issue. I thought i had done all my homework yet you can see that I missed this critical piece of info.
Now I need to decide: keep them or get a stud conversion? Not sure which to do right now.
#10
i'd definitely go for a stud conversion rather than have the wheels drilled. the TSW ones that Way has is out of stock at the moment. has anyone tried the studs from Evasive Motorworks?
http://www.evasivemotorsports.com/me...HEELMATE-STUDS
http://www.evasivemotorsports.com/me...HEELMATE-STUDS
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