Anonymous
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Hi,
I would like to know the "throw" or "stroke" (movement of the cage) of the FD-4503 derailleur from least to greatest (as measured from the center of the mounting band / center of seat tube.
I 'm looking for a front derailleur for a road bike I modified with a non-dished rear wheel (145mm rear drop-out). Chainline of my bike=51.8 as measured according to Shimano's specs in technical manual. Chainrings= 52/42
seat tube 28.6
Currently using Shimano FD-AX55 (circa 1980's) works great (throw=38-60 with end limit screws removed for academic curiosity) . The end limit screw are installed on the bicycle and work great (remember chainline 51.8, I have plenty of "head room"). Want to up-grade, 'cause the plastic peice within the pivot is aged and cracked from the time I installed it.
Help (please)
Thanks,
Bruce email brucedpac@yahoo.com
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melissa
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Anonymous said:
Hi,
I would like to know the "throw" or "stroke" (movement of the cage) of the FD-4503 derailleur from least to greatest (as measured from the center of the mounting band / center of seat tube.
I 'm looking for a front derailleur for a road bike I modified with a non-dished rear wheel (145mm rear drop-out). Chainline of my bike=51.8 as measured according to Shimano's specs in technical manual. Chainrings= 52/42
seat tube 28.6
Currently using Shimano FD-AX55 (circa 1980's) works great (throw=38-60 with end limit screws removed for academic curiosity) . The end limit screw are installed on the bicycle and work great (remember chainline 51.8, I have plenty of "head room"). Want to up-grade, 'cause the plastic peice within the pivot is aged and cracked from the time I installed it.
Help (please)
Thanks,
Bruce email brucedpac@yahoo.com |
Hi Bruce,
I assume you found their Tech Docs page?
I can have Tom look at it tomorrow for you.
Melissa
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