tlippy
02-19-04, 09:36 AM
Can anyone tell me the exact difference between a 105 double and triple FD.
Specifically the difference between a FD-5501 and FD-5504?
Specifically the difference between a FD-5501 and FD-5504?
Bicycle Mechanics - What is the difference between a double and a triple FD?
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demoncyclist
02-19-04, 09:59 AM
On a triple der, the cage is slightly wider to accomodate the larger difference between the largest and smallest rings.
Retro Grouch
02-19-04, 04:24 PM
Can anyone tell me the exact difference between a 105 double and triple FD.
Specifically the difference between a FD-5501 and FD-5504?
I went down to my shop where I have a pair of Ultegra bikes. One has a double and one has a triple front derailleur. At a glance:
1. The triple cage has a much wider inner blade. I assume that's to lift the chain from the granny to the middle chainring better.
2. The triple cage seems to drop lower in back. I assume that's to prevent rubbing if you are in the granny and one of the smaller rear cogs.
Specifically the difference between a FD-5501 and FD-5504?
I went down to my shop where I have a pair of Ultegra bikes. One has a double and one has a triple front derailleur. At a glance:
1. The triple cage has a much wider inner blade. I assume that's to lift the chain from the granny to the middle chainring better.
2. The triple cage seems to drop lower in back. I assume that's to prevent rubbing if you are in the granny and one of the smaller rear cogs.
tlippy
02-19-04, 06:54 PM
Thanks guys------that's the info I wanted.