OK, just tried the 10x1.25mm and they worked great, could not ask for a better fit.

This is the clutch orientation from my dealer and it is the opposite of what is labeled on the disc, but it makes sense. The side that sticks out away from the clutch pads the most goes toward the flywheel for clearance reasons.
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It appears that I am doing this in the nick of time! 4700 miles on the odometer.

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and all the things that look like failure points are actually bits of the ground up missing chunk that appear to have heat welded themselves to the roller and the other good (at least appear to be) rollers.
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Did anyone elses rollers appear to have the welded on bits of rubber on the rollers that did not fail?? These pieces came off easily with finger nail action and felt sticky.


The light at the end of the tunnel is actually a train. 2019 M3W