1: I did a search
2: the pics in the old threads were deleted
3: I want to make sure that I have the same problem
I noticed my rear rim was cracked around many of the nipples while I was doing some maintenance. Luckily I had a rear rim to replace it with but now I'm curious about the cause for the cracks. Here are some pics. I apologize for the blurry pics but it's a camera phone without focus for closeups.
Any reason for the cracks? Am I doing something wrong or is it just normal wear?
edit: added the bold