Wheel on my new KH29

[UniMyra]

@Rengas

While riding I could hear the brake make a ssh sound every stroke, just as if I would have pressed the brake slightly. If I spun the wheel without sitting on the unicycle, there was no sound. I don’t think that the brake is too tight since I can press the lever quite a bit before it starts to brake and make the ssh sound.
Any ideas about this one?

Check out this thread regarding KH and disc brake issues: KH Spirit Cranks - STRAIGHTNESS of disc mount.