my son spent forever getting the pedal assembly off this old columbia frame. the front fork came off a frame i used for a different project, the front wheel came off a bike he pulled out of someones back yard, the back wheel/pedals off a thrift store bike, y'know the story. he put 2 seats on it for two different riding positions, the "back seat" came off an excercise machine someone had waiting for the trash man - i ALWAYS stop and take those seats!