So i recently purchased an Ultegra 10sp RD-6600...rear derailluer. It was working fine untill today when it broke. The cage broke off with out any warning. I have a 12-25 cassett which the short cage derailluer is compatible with, and everything was tuned properly. and ontop of the really sweet 90$ piece of metal i now own instead of a derailluer, it bent one of the spokes on my new wheelset. Does any one have a suggestion on what i should do to get compensation for this? I'm deffinantly sending a letter to shimano, and i'm guessing its about time i try out campy.
WTF Shimano
1 - 20 of 24 Posts
Joined
·
1,223 Posts
I am a Campy guy, but it doesn't sound like the cage would JUST BREAK while riding along. It seems more like overshifting the derailleur into the wheel. If that's the case, then it could either be bad adjustment of the derailleur (that's when you miss the fred-looking plastic plate around the cassette), or misalignment of the frame/derailleur hanger.
Good luck with the warranty request.
Good luck with the warranty request.
I wouldn't rule out a defective derailleur cuz it can happen. I would indeed right a letter to Shimano, and I would keep it in a positive tone. I would bet they will ship you a new one, but the spoke might be a different animal. Please keep us posted on your progress.
Joined
·
222 Posts
so there i was, JRA...
don't mean to come off sounding like an ass, but that looks like the result of an improperly adjusted overtravel screw, nothing more. it doesn't take much to put your rear mech into the spokes, and what i'm seeing is totally consistent with that scenario.
one of the downsides of index shifting, unfortunately. you can set up your index points perfectly, and everything shifts perfectly, until you squeeze the lever a bit too far and go past the index point, and past the point the overtravel screw should have been set at, and into the spokes and "snap".
sorry, but cages just don't fail like that out of the blue...
don't blame it on shimano, consider it a not so expensive lesson learned on the finer points of setting up a bike.
-eric
btw: your wheel should be fine. i've ridden wheels with spokes tweaked much worse than that for years, and usually it was one of my mountain bikes.
don't mean to come off sounding like an ass, but that looks like the result of an improperly adjusted overtravel screw, nothing more. it doesn't take much to put your rear mech into the spokes, and what i'm seeing is totally consistent with that scenario.
one of the downsides of index shifting, unfortunately. you can set up your index points perfectly, and everything shifts perfectly, until you squeeze the lever a bit too far and go past the index point, and past the point the overtravel screw should have been set at, and into the spokes and "snap".
sorry, but cages just don't fail like that out of the blue...
don't blame it on shimano, consider it a not so expensive lesson learned on the finer points of setting up a bike.
-eric
btw: your wheel should be fine. i've ridden wheels with spokes tweaked much worse than that for years, and usually it was one of my mountain bikes.
Joined
·
397 Posts
If you suspect a defect, here's where you should start:sdnomis88 said:
http://bike.shimano.com/publish/content/cycle/sac/us/en/support/warranty/warranty_claim_form.html
Good luck.
Bent hanger?
If the frame's derailleur hanger is bent inward (angled toward the spokes), then a derailleur with correctly set limit stops can still go into the spokes. I always check hanger alignment before I adjust a rear derailleur.sdnomis88 said:
Joined
·
984 Posts
I had a problem like that when the rear wheel spokes were too loose. The rear wheel shifted a couple of millimeters into the rear derailleur when I was climbing a steep hill out of the saddle. The result was a bent RD, RD hanger, and spokes.
As you can see in my avitar, I don't have that problem any more. The Nimble Crosswind wheels may be a little soft laterally but they sure don't move enough to get within 10mm of the RD.
As you can see in my avitar, I don't have that problem any more. The Nimble Crosswind wheels may be a little soft laterally but they sure don't move enough to get within 10mm of the RD.
Joined
·
13,390 Posts
Me too. :thumbsup:epic said:
Joined
·
7,287 Posts
sdnomis88 said:
Bring it back to the shop and blame the mech that put it together.
Joined
·
277 Posts
+6 for learning how to adjust your r. derr properly. In my 20+ years of cycling experience, I've never seen a r. derr fail due to just the derr - always an adjustment or impact or other issue.
Joined
·
277 Posts
or if you didn't do it yourself, I'd certainly raise hell w/ the shop that did the work
Joined
·
413 Posts
If your chain was too short you would have had an even more expensive lesson. A worst case scenario with a chain too short would be the RD tearing away from the drop out with the RD crashing into the rear wheel. This usually results with a wrecked frame and a wicked face slam. No, I'd have to agree with what most others have already stated, that is you didn't get the limit screws adjusted correctly.sdnomis88 said:
Joined
·
964 Posts
This isn't the first time I've seen a thread devoted to a newest-generation Ultegra rear derailleur that bit the dust. Most of them have died due to a faulty Shimano chain, but some have simply just broke. There's been a few of those threads on the Bikeforums.net board.
Joined
·
244 Posts
count me in
:thumbsup:Mr. Versatile said:
Joined
·
244 Posts
If your hanger is bent BEFORE you install the derailleur, you will still set the limits so that the chain does not shift into the spokes/ off the cog. It will shift like crap, but there is nothing different as far setting the limit is concerned.Mark McM said:
Joined
·
244 Posts
supercorsa said:one of the downsides of index shifting, unfortunately. you can set up your index points perfectly, and everything shifts perfectly, until you squeeze the lever a bit too far and go past the index point, and past the point the overtravel screw should have been set at, and into the spokes and "snap".
QUOTE]
Eric, you're not suggesting that it is uneccesary to set limit screws with friction shifters, are you?
1 - 20 of 24 Posts
