Join Date: Jul 2008
Location: Grid Reference, SK
Bikes: I never learned to ride a bike. It is my deepest shame.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
1. probably - the existing bb probably has
2. No. Will have to be spread (cold - set) from the current width (probably 126mm) to the current road standard - 130mm. Then alignment of stays and dropouts must be confirmed to keep everythign straight.
3. Yes, as long as it is worth it to you, and the frame you choose to use fits you perfectly and has no damage. What type of quality are the old Schwinns you have? I looked up info on old schwinn models to see where yours fall in the lineup, but I could not immediately find anything. If they are old heavy straigh-guage steel frames then you might be better off searching classifieds and craigslist for something nice for your upgrade project.
4. (answer to a question not asked) It might be a better idea to put the Dura-Ace parts on the Lemond, and use the Tiagra/105 stuff on the Schwinn.
Also, what size wheels do the Schwinns use? If they are designed around 27" wheels, and you intend to use 700C you will likely need some extra-long-reach brake calipers. This could make the bike into a super-sweet all weather bike that can accomodate wider tires and fenders.
As for the brake levers you mentioned, generally Dura-Ace parts use a Shimano STI brifter which would necessetate the removal of the old brake levers. Generally (IMO) the newer levers are much better than the old ones.