Fixed Gear drivetrain questions etc.
About a month ago my girlfriend decided to give me a frame(it says American Flyer on the front, not really familiar), she and her dad completely took it apart before she gave it to me. This was a mistake, I believe. Mainly because I'm really confused about the bottom bracket stuff, as I am new to bike mechanics.
I've learned alot in the past few days, but i'm still not entirely sure what I need.
If I measured right the width of my shell is 70mm. What else do I need to know, and will it effect what cranks I am able to get? (http://www.eighthinch.com/mm5/mercha...=cranksets_bbs
I will appreciate any and all help, this will be my first time building a bike.