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      08-28-2012, 03:41 AM   #34
ovekvam
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Norway
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Drives: 2021 Galvanic Gold i3S
Join Date: Jun 2012
Location: Bryne, Norway

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I looked up the brake sizes.

Stock size on a 116i M-Sport with regular brakes:
Front: 284x22 mm, Rear: 290x11 mm.
Ventilated discs front, single piston calipers.

Optional M-Sport brakes for 116i:
Front: 340x30 mm, Rear: 345x24 mm
Ventilated discs front and rear, 4 pistons front, dual piston rear.

On the M135i, these M-Sport brakes are not optional.
If you order M-Sport brakes for a 116i, you get the same brakes as the M135i.

Do you have any specs for the Performance brakes? I saw them next to the M-Sport brakes one time, and it was difficult to spot differences, except for the color.

Also the parts lists show both ventilated and solid rear discs for the 116i in the regular size. I don't know how BMW decides which ones to deliver with the cars. Maybe ventilated with the M-Sport package? I will have to check what mine has one day.
Appreciate 0