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09-18-2013, 12:08 PM | #1 |
Colonel
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1M rotors on a 135 ?
Been thinking of when I adapted the Z4 with a set of Z4 M rotors and 135i calipers with a 5mm spacer and they bolted right up, does anybody know if adding such a spacer and moving the caliper outward would be enough to fit the 1M rotors ? Didn't know if this was done before and seems easy enough. It be nice to fill up the wheel with more rotor.
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09-19-2013, 12:04 AM | #2 |
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I think the limitation is the width of the rotor. The 1m rotor is 30mm which seems to be too wide for the brake pads. If I remember correctly, racingbrake was experimenting with that rotor width when developing their two piece rotor but had issues with fitment so they stuck with 28mm.
...But to be honest, I hope I am wrong and they somehow fit. I would love to have 1m rotors. |
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09-19-2013, 12:43 PM | #3 |
Colonel
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http://www.zpost.com/forums/showthread.php?t=671487
here was the brake job i did a while back with the 135I calipers mated to the Z4M rotor which i think is 30MM could be wrong but everything fit like a charm! thinking of doing something similar with the 1M rotor. |
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09-20-2013, 08:48 AM | #5 | |
Colonel
891
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Quote:
I'll have to send my carriers out to have the spacer welded on. Just need to do some test fitting to make sure as to what size spacers I need to add. Might make this a winter project. |
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09-22-2013, 02:01 AM | #6 |
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The ECS website shows the two piece rotor as 338x26 (ES#2550968). Thats the only two piece on the website.
The Z4M rotor is 345 x 28mm (OEM part number: 34112282445) I hope someone links or adds data to say otherwise. I would still really love those 1M rotors. |
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