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Abus Eazykf™ bracket is very a convenient system imho, the u-lock is really secure on your bike frame.
No vibrations sounds comes from road irregularities, fast and easy to remove or secure with one hand.
Unfortunately there are only 2 clamps sizes, one round 12mm and one 13mm rounded square, for the Abus Granit u-locks.
This shackle clamp can be used with any U-locks with 16mm (diameter size of the steel without the protective plastic or rubber on it).
Remember you'll have to cut the plastic or rubber protection on your u-lock to mount the clamp.
16mm U-Locks exemples: Kryptonite New York Lock STD, Trelock US 650 etc.
You'll need the Abus Eazykf holder (Art. n° 45344) and 2 short bolts M5x12mm with nuts (these are not included with this clamp)