I noticed the other day that my unicycle was making popping noises so when i went to check it out it seems that on the outside most park of my rim it seems to have started peeling off. sorry i have no pictures to show but if you start at the tire the very first part of the rim (the rim of the rim) where there is that indent it is peeling off. is this a cause for immediate concern or do i have a while before i have to do something about it?
If you are describing what I believe you are, that was an issue with a batch of KH rims a while back, there was a groove in the rim which made maguras make a sound when they needed to be replaced but it weakened the rim and a lot of people had the outer edge breaking off. I'm pretty sure they were getting them replaced without a cost as manufacturers defects.
EDIT: here is a more direct link to what Kris had said about the rim http://tinyurl.com/cf5t6 I was wrong about it being to make a sound, but was right about them being replaced.