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 Posted: May 26, 2024 10:28PM
TK
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AU
Think about it. The calliper is the part that will hit your wheels, not the disc.

 Posted: Apr 13, 2024 06:05PM
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US
  

 Posted: Apr 13, 2024 02:26PM
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I had planned on running one of the 7.9in kits under my 10in wheels, but the calipers are stamped "8.4" instead of "7.9".  I don't intend on running 8.4 calipers, but I'm also not sure if there is a true difference between 8.4 and 7.9 calipers since the 7.9 rotor is essentially a turned-down 8.4.  I reached out to a couple companies in the old country and they replied with a list of a couple wheels that would/should fit the straight 7.9 combo.

 Posted: Apr 13, 2024 10:16AM
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US
Are you planning on running 10in wheels? I doubt the 8.4 calipers will work with 10in wheels. 

 Posted: Apr 12, 2024 07:50AM
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Thanks for the info.

 Posted: Apr 12, 2024 06:43AM
 Edited:  Apr 12, 2024 06:50AM
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companies that sell big brake kits usually offer a brake template so that you can confirm clearance with your wheels before buying anything.  Example here:

https://www.minimania.com/images/articles/Big_Brake_Wheels/Stoptech_Clearance_Template.pdf

and here:

https://www.7ent.com/pages/articles-tech-tips/kad-caliper-info-which-calipers-do-i-need.html

On the UK forums I see people claiming they have 8.4" calipers on 7.9" rotors, most of them say they had to add wheel spacers.

 Posted: Apr 11, 2024 04:24PM
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MK1 Cooper S question.

I tried searching and looked through the first 5 pages of the forums, but here I am.

Does anyone out there know if an 8.4 caliper will fit/work on a 7.9 rotor?  I ordered the rotors and calipers as a kit a while ago and am getting around to finally assembling and installing everything.  I noticed during my pre-task inventory that the calipers are stamped with a big "8.4" on them along with the label on the box stating "8.4".

66 Cooper S
LHD