Join Date: May 2010
Location: Boston, MA
Bikes: 1981 Trek 613, Bianchi Ibex, Bianchi Fixed, Schwinn Tempo, nothing that would get stolen (sigh).
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Correct front derailleur/chain length for vintage touring rebuild?
I'm rebuilding an old touring frame, and I've got most everything good to go - except for the front derailleur. I'll need one that will attach onto the 28.6 tube and isn't clamp-on. I assumed that since the front derailleur will be running friction, whatever road triple I had sitting around would work. But, as we all know, nothing with bikes is ever this simple.
Running Ultegra road triple (52-42-38?) with 11-32 9 speed cassette.
Using Dura-Ace 3x9 barcons.
Rear derailleur is Shimano LX (was advised would be better than 105)
The problem: Need RD that doesn't take clamp-on, 28.6 seems an odd size. The Tiagra road triple I hoped to use looks to be too wide.
What would be the best choice for a front derailleur? Shim the Tiagra? Use a mountain triple?
Additionally, once I've got that one up, how long should I trim the chain for? I don't foresee running 52-32, so is the typical rule of chain length measurement out the window?
I apologize if this has been covered in other threads, but since I had two problems simultaneously, I figured I would consult the experts directly. Thanks so much for your time.
Can't wait to get this baby on the road.