Electronic & Hydraulic Shifting (Di2, Ui2, customisations)

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gbj_tester in reply to @Brommers

The faceplate stem bolts are only done up to 4 or 5Nm, which would result in very little compressive load on the mount.

5Nm on a properly lubricated M5 bolt is about 5000N bolt tension. You don't want any plastic in that load path. If it doesn't explode, it will creep, and if doesn't creep it will be insufficiently stiff and then you've effectively got a spring under the bolt head which compresses and loosens the grip on the bars every time the load increases. Even if the bars don't slip, the pressure on the unloaded side drops to zero and the bar/stem interface frets, creating the initiation point for a fatigue crack.

M5×0.8 is very close in size to the #10-32TPI Tom Lipton tests here:
https://www.youtube.com/watch?v=QC6QciSh6gw

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deleted in reply to @gbj_tester

What about that carbon infused stuff? Will that save Neil's teeth from getting smashed again?

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gbj_tester in reply to @deleted

What about that carbon infused stuff?

Fibre filled is better than plain polymer, but I still wouldn't use it as effectively a very tall washer under my stem bolts. There's a good reason why all the plastic Garmin mounts clamp around the bar, and it's not just that it allows inclination adjustment.

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