Lightest front derailleur? (road 2x)

Discuss light weight issues concerning road bikes & parts.
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alcatraz
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by alcatraz

Hi WWs

I found that a dura ace 7900 derailleur is 66gr (braze on) so I'm now finding myself looking for one. It struck me though that there might be lighter ones out there. Do you know of any? (without resorting to limited crazy hard to find items)

I don't mind mixing components. I run a sram drive train and only recently found out that front derailleur action is super smooth even when using an ultegra front derailleur with the sram shifters.

I'm currently on 10s.

Thanks for reading
/a

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prendrefeu
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by prendrefeu

Tiso Altore can be tuned down to ~45g more or less.
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by Weenie


Wookski
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by Wookski

Old record derailleurs could be tuned to sub 45 as well

Jenmoss
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by Jenmoss

The lightest one here is actually 47 graImagems the others are in the 50s
No idea why it’s that light ,the one with the split in the cage.

alcatraz
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Joined: Mon Aug 29, 2016 11:19 am

by alcatraz

Tiso is hard to find, old campy must have a wider cage than necessary for narrow chains.

So is it true that from 9-11 speed fd's, shimano 7900 is probably the lightest?

/a

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4ibanez
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by 4ibanez

If you want the lightest you might need to be patient. Also depends what shifters you use. Shimano/Sram shifters aren't compatible with Campy FDs (ratios are problematic I've heard). I don't think the width of a Campy 10s FD will be any different to an 11 (using an all Campy setup). There's going to be easily enough adjustment to shift all the way over the big ring.

graeme_f_k
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by graeme_f_k

4ibanez wrote:
Sun Jan 28, 2018 9:02 pm
If you want the lightest you might need to be patient. Also depends what shifters you use. Shimano/Sram shifters aren't compatible with Campy FDs (ratios are problematic I've heard). I don't think the width of a Campy 10s FD will be any different to an 11 (using an all Campy setup). There's going to be easily enough adjustment to shift all the way over the big ring.
Old thread but for reference - Campag 10 and 11s FDs have significantly different width and shape gates.
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alcatraz
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Joined: Mon Aug 29, 2016 11:19 am

by alcatraz

I did get a 7900 in the end and it's 66gr spot on.

Tuning is a bit beyond me I'm afraid. I run 10/11s systems so I need that cage width.

Thanks for all the replies.

/a

by Weenie


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themidge
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by themidge

My 7900 FD is 66 grams too, props to shimano for consistency. It even matches the claimed weight! :thumbup:
Correct me if I'm wrong but I think it's the lightest un-tuned. I know record and tiso etc. can be tuned lighter, but stock..?

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