[SuperDelite] Strange noise from rear brake?

[RMSDivine]

Hello everyone , my new SuperDelite does a strange noise when riding, such as the breaks scraping the disk.... or?
The bike has now 100Km....
See the attached video: https://drive.google.com/file/d/1bViNeCUEHieFLPSy-iycF_AXnlrOu06r/view?usp=sharing

 

[TBR]

That "singing" in a dry brake is usually a sign of a brake pad which all but lost its coating. Should not happen after only 100km though, but I had this happen early once in my old Charger when a grain (or more) of sand was caught in the brake and chafed away the coating very early (well before usual wer&tear would have set in). It also scratched the disk, but the "cure" was new brake pads. Is your disk scratched?

Another reason might be an out of alignment disk or misaligned brake levers. That could have happened when locking the bike, even when someone else hit yours while retreiving theirs. Also had that happen on the Charger. With that one I had to replace the disk. If it is only the brake levers you might try to readjust them yourself.

 

[RMSDivine]

Thanks for your contribution.
The bike was serviced, the man told me that the noise was due to wheel misalignment when the bike was initially assembled in the shop which sold the bike.
As a result the brake pads are now slightly unevenly worn :-(
But the noise has gone!

 

[TBR]

Wow - wouldn't have thought that the entire wheel was misaligned...

So effectively it was a misaligned disk, only that the wheel was misaligned too.