zeroking17
07-23-2007, 02:14 PM
I'm thinking of getting a compact crankset (50-34) to replace a standard 53-39, and I want to be sure that I can lower the front derailleur enough before I plunk down the dough. The frame has a brazed-on derailleur tab.
I asked the framebuilder about this, and he thinks that the slot in front derailleur tab will allow me to lower the derailleur enough. (However, since the frame was built in 1998 -- before compact cranksets were prevalent -- he cannot absolutely positively guarantee that it will accommodate a compact.)
Can anyone tell me how much smaller (in millimeters) is the diameter of a Campy compact versus a standard Campy 53-tooth chainring?
I asked the framebuilder about this, and he thinks that the slot in front derailleur tab will allow me to lower the derailleur enough. (However, since the frame was built in 1998 -- before compact cranksets were prevalent -- he cannot absolutely positively guarantee that it will accommodate a compact.)
Can anyone tell me how much smaller (in millimeters) is the diameter of a Campy compact versus a standard Campy 53-tooth chainring?