Moin! Use your expert-competent advice again! Yesterday we had a bigger tour (about 350 km) and often when I went after my girlfriend, her Sporty “kling””I noticed that when driving down the mountain with motor brake, also when accelerating….I can’t describe the sound differently…a metallic ringing, however, is not to be noticed at the driving operation itself, the driver herself does not hear it (good,ok,open bags… :-))To narrow down the cause And to know where to look for the causer, I need your advice!What do you mean?Did the mopped bag and knock off, there was such a sound to hear from the rear shock absorbers…can this be related to the increased vibrations when driving off the mountain/acceleration? does anyone know the problem already? Thank you in advance! sunburn