front derailleur hanger is broken
#1
PedalForever
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front derailleur hanger is broken
While riding my 2010 Fuji SST 1.0 road bike the front derailleur started clicking and the next thing I knew the front derailleur hanger was torn in half. I imagine since the bike is 11 years old Fuji no longer offers the part. The derailleur hanger is riveted onto the carbon fiber tube which is ovalized in shape so I cannot use a clamp-on style hanger. Any idea where I might be able to find the correct hanger?
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Photos would be really useful here.
If the riveted hanger has failed, then you have a potentially scrap frame, as getting it repaired could be cost prohibitive. Have you been to a good LBS to ask for an opinion?
For carbon repair, Calfee are 'near' you, maybe worth contacting them, it's a couple of hours drive, but the cost of taking vs shipping may come in similar
Carbon Repair – Calfee Design
If the riveted hanger has failed, then you have a potentially scrap frame, as getting it repaired could be cost prohibitive. Have you been to a good LBS to ask for an opinion?
For carbon repair, Calfee are 'near' you, maybe worth contacting them, it's a couple of hours drive, but the cost of taking vs shipping may come in similar
Carbon Repair – Calfee Design
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#3
PedalForever
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derailleur hanger
If I can get a new hanger then I can simply remove the existing rivets and reattach it. That's a job that I can easily do myself but finding the hanger is the question. One possibility is to machine a new hanger out of aluminum but it would be very time consuming.
The frame is too good to scrap. The bike weighs 15 lb fully assembled and I love the way it handles.
The frame is too good to scrap. The bike weighs 15 lb fully assembled and I love the way it handles.
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If I can get a new hanger then I can simply remove the existing rivets and reattach it. That's a job that I can easily do myself but finding the hanger is the question. One possibility is to machine a new hanger out of aluminum but it would be very time consuming.
The frame is too good to scrap. The bike weighs 15 lb fully assembled and I love the way it handles.
The frame is too good to scrap. The bike weighs 15 lb fully assembled and I love the way it handles.
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Yes, that will be the hard part. Maybe check some new bikes in shops to find a match for the seat tube shape and order one as many mfrs offer replacements on newer bikes. Also try contacting FUJI. I wouldn't bet any money they could help you but worth a try.
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I'd contact Fuji on the chance that they just might have that front derailleur hanger you need. I've found a lot of times a simple question to the manufacturer gets me exactly what I need.
Good luck and cheers
Good luck and cheers
#7
PedalForever
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Fuji responded very quickly and told me what I expected.....they don't have the part available. I was hoping the hanger was not a one-off design. Online there are Cervelo front hangers with rivets available. The four rivet hole will not match up but I think I can successfully fill the existing holes with epoxy putty and drill four new ones for the Cervelo mount.
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#9
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The plate that sits against the frame is not wide enough to cover the existing rivet holes. One possibility is to weld a new, wider plate to the back of the new mount but that may not be possible as the high strength aluminum alloys (2xxx and 7xxx series) are not weldable. I suspect the hanger is more likely made of a weldable alloy like 6061 but won't know till I get it.
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See if FUJI has a drawing of the hanger so you can fab one.
#11
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Thanks for the thought. I have a second SST 1.0 which has an undamaged mount so I can always take the measurements off that if need be. I think my first course of action will be to try and repair the torn mount. I will have to drill out the 4 rivets, fab the piece that was torn off the mount and weld it on. I have welded a fair amount of aluminum but I am an amateur so I will probably get a professional who is well versed with aluminum to do it.