Front Derailleur
11-01-21, 05:41 AM
#1
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Front Derailleur
Is there a newer direct replacement for a front derailleur FD-1055? I would like to update both front and rear on my vintage Peugeot. Thanks for any information!
11-01-21, 06:03 AM
#2
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The upgrade from 105 would probably be Ultegra or Dura Ace. At this point, finding the compatible units will probably require some searching based on number of gears at front and rear as well as tubing diameter for clamp on FD. Cage length on RD if you have or go to a triple on the FD.
Lots of variables. What is the goal?
Lots of variables. What is the goal?
11-01-21, 06:03 AM
#3
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What are you unsatisfied with, with your current front derailleur? Do you have trouble with the shifting? Has the metallic paint gone all crusty and unsightly? Reason I ask is, the 1055 is a pretty no-nonsense front mech. I can't imagine having a ton of trouble with it unless it's completely worn out, nor can I imagine upgrading to anything significantly better-shifting, unless you need indexing. Are you looking to have indexed front shifting, or friction? I do know that corrosion can start under paint on the 1055 parts and make them somewhat unsightly.
If this is for your '90 Peugeot Triathlon in your profile, the seat tube should be normal sized, so any old derailleur except an antiquated French one will fit. It's clamp-on, not braze-on, right?
If you're going for friction shifting, almost anything will work to replace the shortish cage of the 1055. I like the ultralight ones from Suntour (Superbe and Cyclone M2). They are like little jewels. I also like old Dura Ace, from before the cages were contoured to index well. Great quality. For bombproofness, the lower lines of '80s Suntour were awesome. If you need indexing, however, I have no idea.
If this is for your '90 Peugeot Triathlon in your profile, the seat tube should be normal sized, so any old derailleur except an antiquated French one will fit. It's clamp-on, not braze-on, right?
If you're going for friction shifting, almost anything will work to replace the shortish cage of the 1055. I like the ultralight ones from Suntour (Superbe and Cyclone M2). They are like little jewels. I also like old Dura Ace, from before the cages were contoured to index well. Great quality. For bombproofness, the lower lines of '80s Suntour were awesome. If you need indexing, however, I have no idea.
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Owner & co-founder, Cycles René Hubris. Unfortunately attaching questionable braze-ons to perfectly good frames since about 2015. With style.
11-01-21, 06:11 AM
#4
Junior Member
Thread Starter
Thanks for your help, my FD is hooked to a Microshift STI and it just doesn’t shift smoothly. I still have a 2x7 system with 48/38 chainrings. I was just looking for a derailleur that was more intended for working with newer shifters. I can certainly live with what I have, but it’s fun to upgrade sometimes. Thanks again!
11-01-21, 06:18 AM
#5
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Any Shimano 5500/5600/5700/6500/6600/6700/7700 FD will work nicely.
Lots out there, they don't die very easily...
Lots out there, they don't die very easily...
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11-01-21, 06:27 AM
#6
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Excellent! Thank you very much!
11-01-21, 06:48 AM
#7
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Your FD-1055 was designed to operate in friction mode. The ones listed ^ are meant to be indexed. Make certain that you buy the cage type that is made for the number of chain rings that you have (two?).
It's a clamp on type? Know your seat tube diameter. 28.6mmm is most likely. Measure before you buy. Make certain that the FD comes with the shims to fit between the 28.6 mm seat tube and 31.8 mm clamp inner diameter. Don't buy a 34.9 mm.
It's a clamp on type? Know your seat tube diameter. 28.6mmm is most likely. Measure before you buy. Make certain that the FD comes with the shims to fit between the 28.6 mm seat tube and 31.8 mm clamp inner diameter. Don't buy a 34.9 mm.
