Quote Originally Posted by Trek420
What are Cottered cranks?

I think I know but don't want to sound dumb when I go in to the LBS to talk about the freewheel fixer upper.
HA, I didn't know what they were either until yesterday. I did a search on every component I took off on sheldonbrown.com and the park tools website. Some great pics and I learned a lot, just by looking up each part. They both have pics of them, which is better than trying to explain it. All I know is mine came off clean in two whacks and I did a happy dance. Apparently, and DebW supports this, I was lucky!