Wheel Stud Conversion and Sizing
Thread Starter
MBWorld Fanatic!
Joined: Jun 2011
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From: Silicon Valley, CA
C63 AMG, P30
Wheel Stud Conversion and Sizing
Hi All,
So after a bit of research, it looks like we need 37mm shank bolts with a 10mm spacer and 39mm shank for 12mm spacers.
I cannot seem to find 39mm shank bolts and I don't really want to go down the route of shaving 40mm bolts down.
On my M3, I had studs and really liked the ease of use.
My question is this: what size shank size would we need for 10 or 12mm spacer?
Here are some examples of studs that could potentially work for our cars.
http://motorsporthardware.com/produc...onversion-kit/
Anyone know?
Thank you and Happy Thanksgiving!
So after a bit of research, it looks like we need 37mm shank bolts with a 10mm spacer and 39mm shank for 12mm spacers.
I cannot seem to find 39mm shank bolts and I don't really want to go down the route of shaving 40mm bolts down.
On my M3, I had studs and really liked the ease of use.
My question is this: what size shank size would we need for 10 or 12mm spacer?
Here are some examples of studs that could potentially work for our cars.
http://motorsporthardware.com/produc...onversion-kit/
Anyone know?
Thank you and Happy Thanksgiving!
MBWorld Fanatic!
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Posts: 5,351
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From: Kitchener, ON
2010 C63 AMG
MBWorld Fanatic!
Joined: Aug 2011
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From: Kitchener, ON
2010 C63 AMG
Thread Starter
MBWorld Fanatic!
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From: Silicon Valley, CA
C63 AMG, P30
MBWorld Fanatic!
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From: Kitchener, ON
2010 C63 AMG
Code:
RB kit (80mm) = $105.80 for 2 wheels MH kit (82mm) = $113.00 for 4 wheels
Last edited by Jasonoff; Nov 27, 2015 at 08:04 AM.
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Thread Starter
MBWorld Fanatic!
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From: Silicon Valley, CA
C63 AMG, P30
80MM's seems to accept up to a 20 or 25mm spacer? So for a 10MM spacer, I'm thinking something around 40MM to match that of a 37mm shank bolt.
Right?
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08 C63 P30
I'm looking into the motor sports hardware wheel studs as well. Not only are their prices are better, but they have different length options compared to rb's 80mm length, and also an option to buy black lug nuts. There is a 15% Black Friday sale too.
To help answer the op's question, motor sports hardware has short wheel stud for a no spacer setup, these ones are 44mm in length. Add 12mm worst case spacer, puts you at 56mm. They offer wheel studs in the 60mm range so I think that's the best bet. I have no experience with wheel studs, but that's what I think though.
Going to add another question to this thread. For aftermarket wheels with different offsets compared to oem, does that need to be taken into account?
To help answer the op's question, motor sports hardware has short wheel stud for a no spacer setup, these ones are 44mm in length. Add 12mm worst case spacer, puts you at 56mm. They offer wheel studs in the 60mm range so I think that's the best bet. I have no experience with wheel studs, but that's what I think though.
Going to add another question to this thread. For aftermarket wheels with different offsets compared to oem, does that need to be taken into account?
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MBWorld Fanatic!
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From: Silicon Valley, CA
C63 AMG, P30
MH has studs in 64mm which would be just a tad larger than what I would consider perfect.
I think 60mm would to small enough to hide most of the stud in the lug nut "barrel" of the wheel.
Cjoy - yes, I would think that with different offsets, you'd need different sizes.
I think 60mm would to small enough to hide most of the stud in the lug nut "barrel" of the wheel.
Cjoy - yes, I would think that with different offsets, you'd need different sizes.
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From: Kitchener, ON
2010 C63 AMG
Thread Starter
MBWorld Fanatic!
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From: Silicon Valley, CA
C63 AMG, P30
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08 C63 P30
Just got off the phone with Motorsports hardware, they recommended going with either the 64mm silver stud or the 82mm black race stud when using spacers. The threads on the black 68mm stud do not go all the way to the tip so there isn't enough thread. The 64mm does, and the 82mm definitely has more threads.
If the 64mm came in black I would be all over them, will prolly go with the 82 just because of the color.
If the 64mm came in black I would be all over them, will prolly go with the 82 just because of the color.
Thread Starter
MBWorld Fanatic!
Joined: Jun 2011
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From: Silicon Valley, CA
C63 AMG, P30
Just got off the phone with Motorsports hardware, they recommended going with either the 64mm silver stud or the 82mm black race stud when using spacers. The threads on the black 68mm stud do not go all the way to the tip so there isn't enough thread. The 64mm does, and the 82mm definitely has more threads.
If the 64mm came in black I would be all over them, will prolly go with the 82 just because of the color.
If the 64mm came in black I would be all over them, will prolly go with the 82 just because of the color.
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From: Cincinnati Area
C63 507 with BS Body; 2008 SLK 55
They say the 82 mm is god for spacers up to 20 mm (I would say maybe 25, but no more, based on my experience with the 80mm RB studs). That means the 64 version does have very little room for spacers. No more than 5 mm.
Thread Starter
MBWorld Fanatic!
Joined: Jun 2011
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From: Silicon Valley, CA
C63 AMG, P30
Just got off the phone with Motorsports hardware, they recommended going with either the 64mm silver stud or the 82mm black race stud when using spacers. The threads on the black 68mm stud do not go all the way to the tip so there isn't enough thread. The 64mm does, and the 82mm definitely has more threads.
If the 64mm came in black I would be all over them, will prolly go with the 82 just because of the color.
If the 64mm came in black I would be all over them, will prolly go with the 82 just because of the color.
Also, for all others looking to grab these, they said the 64mm will work. The gentleman I spoke to said to mention that you want R13 ball seat nuts in the order notes and they'd include them.
https://motorsporthardware.com/produ...x1-5-audivwmb/
Going to pull the trigger on these shortly and will report back with pics/reviews etc.
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2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
I have been told OEM wheels are R14 ball seat. I have no way to measure them but I believe they are R14. Maybe MBs with 12M lug bolts have a R13 ball seat.
Thread Starter
MBWorld Fanatic!
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From: Silicon Valley, CA
C63 AMG, P30
MBWorld Fanatic!
Joined: Feb 2010
Posts: 5,648
Likes: 484
2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
I just looked up wheel locks for a 2012 C63 from McGard and they say R14. I have always heard heard C63 lug bolts are R14 Ball Seat.
http://shop.mcgard.com/chrome-black-...action=related
http://shop.mcgard.com/chrome-black-...action=related
