Would a double crankset from a 9 speed bike work on a bike equipped with a 6 speed freewheel?
I'm in the process of building a time trial bike. The frame is an 80's Nishiki and originally ran 6 speed freewheel. I'm trying to decide if I should either build it up with 6 speed stuff or have the dropouts widened to 130mm so I could upgrade the bike to 9 speed.
If I decide to keep the 6 speed freewheel would the cranks off of a 9 speed bike work?