Thanks thats actually a lot of great information etung. I have one more question/comment. I just got my crank puller and finally took the crank off to find out the chainring is pressed together with the crank. The ring i got to use on the front is Amazon.com: Sunlite 1-Piece Chainring, 3/32, 52t. I am now thinking I will either have to bolt the new chain ring to the old chainring or find a way of grinding/cutting the crank from the old one. Any suggestions?