Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.dynne
04-25-11, 03:01 PM
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.
Relevant info:
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.
Relevant info:
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.