I've mounted an Abus Granit X-Plus 540 on the frame of a Cube SL Road Pro.

It's a sturdy lock and mount but the lock rattles where the shackle slots in to the crossbar of the lock.

There doesn't seem to be a fix for this.

Is this normal? Has anyone had the same problem?

I can only find glowing reviews online and no mention of this issue.

Thanks in advance.