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      10-04-2020, 11:32 AM   #1
medphysdave
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Alcon rotors for 2NH

FYI, Alcon is willing to create a bmw hat to fit there 400mm and 380mm rotor options that would fit the 2NH option. I'm inquiring about what a full set of rotors would cost and if partially or fully floating. Since I'm sticking with steel I Would be looking for saving a few extra pounds if possible. My googling suggests about 6lb lighter on front and 3lbs on rear. Never going to be CCB savings, but every bit helps.
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      10-04-2020, 01:03 PM   #2
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Anyone have the hat dimensions that would be necessary? I'm guessing they would need lug pattern dimension and hat depth to appropriately position rotor in stock caliper.
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      10-04-2020, 04:56 PM   #3
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Quote:
Originally Posted by medphysdave View Post
FYI, Alcon is willing to create a bmw hat to fit there 400mm and 380mm rotor options that would fit the 2NH option. I'm inquiring about what a full set of rotors would cost and if partially or fully floating. Since I'm sticking with steel I Would be looking for saving a few extra pounds if possible. My googling suggests about 6lb lighter on front and 3lbs on rear. Never going to be CCB savings, but every bit helps.
Cool

Please keep us posted on any developments
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      10-04-2020, 04:59 PM   #4
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Quote:
Originally Posted by medphysdave View Post
Anyone have the hat dimensions that would be necessary? I'm guessing they would need lug pattern dimension and hat depth to appropriately position rotor in stock caliper.
Don't know what the hat dimensions are (sorry)

The lug pattern is 5x120mm

The thread pitch is M14x1.25mm

The center bore is 72.56mm
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      10-04-2020, 05:44 PM   #5
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is this any help?
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      10-04-2020, 05:59 PM   #6
medphysdave
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Quote:
Originally Posted by Fudz View Post
is this any help?
Any chance you can grab me a higher resolution image? I'm sure this is the type of data they are after. I told them they already make a hat for the m2 CS racing, but unsure if it's the stock position since that also use an aftermarket front caliper.
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      10-04-2020, 07:15 PM   #7
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Google that Brembo part number for the high res
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      10-04-2020, 08:06 PM   #8
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boom!
https://www.bremboparts.com/europe/e...isc/09-C399-13

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      10-05-2020, 12:41 PM   #9
medphysdave
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Alternately

https://www.girodisc.com/Girodisc-Fr...rs_p_6855.html

I'm sure they can put together some rears.
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