I took apart the rear derailler for cleaning for the first time in my life. After cleaning, I lubed the heck out of the pulley wheels and put the derailler back together, but the pulley wheels don't spin freely anymore. Am I missing a part, like a bearing or something?
Here's what my setup looks like.
derailler Housing - round metal cap-like thing - pulley wheel - round metal cap-like thing - derailler housing
Here's what my setup looks like.
derailler Housing - round metal cap-like thing - pulley wheel - round metal cap-like thing - derailler housing