Rear Derailleur Hanger Snapped on Trek 5200 OCLV US Postal

Sea.Jocky

Hello All,

I have just been given a Trek 5200 OCLV Carbon 120 bike, however the rear derailleur hanger has snapped, is there any way to fix this other than having a specialist remove the whole part from the frame and replace with a new one?

Or can I buy a rear derailleur hanger to fix on to this somehow..I don't see how I can though

Photo Below

.. Is it worth it, or do I pass on this opportunity?

Thanks in advance for your hep

arlowood

I built up a 2002 5200 frame about a year ago and from recollection the rear dropouts/mech hanger are pre-formed alloy units that appear to be bonded into the seat and chain stays.





Doubt if they could be easily removed to effect a replacement (even if one existed). I also doubt that it would be an easy job to create a mech fixing point by modifying the damaged dropout/hanger unit.

However these are only my opinions. Might be worth contacting one of the carbon frame repair specialists to see if they can suggest a way round the problem. Can't imagine it's going to be cheap though

Sea.Jocky

Thanks, you are completely correct, looks like my only option will be to take it to a carbon specialist. Starting to debate whether this is worth the trouble or not

Salsa

Worth trying one of these?
http://problemsolversbike.com/products/ ... eur_hanger

Sea.Jocky

Yeah Im not sure how well these will fit and if they will cause the width to increase which in turn messes the derailleur up.

What are peoples opinions on a Axle Mounted Rear Deraillier...?

arlowood

Salsa wrote:

Worth trying one of these?
http://problemsolversbike.com/products/ ... eur_hanger

Reading the blurb suggests that it is more of a "sticking plaster" to get you out of trouble if your hanger breaks on a long ride. Suggests that it will get "most of your gears back" which is probably not what the OP is looking for.

Good emergency spare to carry though

Sea.Jocky

so is an axle mounted derailleur an option?

arlowood

Sea.Jocky wrote:

so is an axle mounted derailleur an option?

Could be an option but the ones I've seen with a quick Google seem to be directed at the MTB community.

http://www.bike-discount.de/en/buy/shim ... tAodijYAWA


Still if it means you can get the frame rideable then maybe it's a compromise worth considering.

A more radical approach might be to re-engineer the rear drop-out to accept a bolt-on claw type adapter as described in this link

http://www.yellowjersey.org/rlfix.html

Not sure how feasible that would be but it might be worth considering as a last resort.

If you've got a local friendly frame builder, light engineering company, classic car restorer or similar - I'm sure they could offer up a few suggestions

Monty Dog

Wouldn't recommend trying to unbond the bust drop out and replacing it unless you have access to a frame jig and you'll probably need to remove the chainstay too. Also, chances of being able to find a drop out are pretty slim given the age of the frame. Getting someone to machine-up a suitable replacement could be costly if you don't have someone friendly. The Problem Solver hanger is probably the best compromise, unless you fancy a fixed-gear conversion?

bikingeveryday

Had same problem. LBS sent frame to Trek and they replaced hanger. Total cost with shipping $70.00.

Salsa

This was what I was trying to think of when I posted the emergency hanger>
http://www.sjscycles.co.uk/dropout-save ... prod26492/
I'm sure I used one of these on a bike a few years back and it worked fine. Drill out the hanger hole and insert that.

Sea.Jocky

Thanks for all of your comments, i have decided this is going to be too much to repair, and with using a universal hanger i would loose some gears, i also didn't want to turn this into a fixie, So I am going to sell!
I have no idea how much it is worth though...everything is there except a front wheel, of which the back is a bontrager race lite. Unfortunately i cannot upload any pictures due to file size