Broken chain rear derailleur
Broken chain rear derailleur
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Discussion

slawek371

Original Poster:

53 posts

161 months

Saturday 30th September 2017
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Hello,
I have just adjusted Tourney rear derailleur in my quite new Triban 100 from decathlon. I have set one screw to make it work quiter but it was wrong becuase it just seemed to be better. When i started to ride my chain fallen between casette and rear wheel spokes. Then my chain broken and one spoke is a little bent and scrached. After that my wheel was turning a little uneven so i have tightened two nipples on spokes a little and now it is straight again, it was nothing serious. Do you think that a little bent spoke can get broken after some time or something might happen? It looks like derailleur isn't bent so i have ordered a new chain, adjusted screw on my derailleur and i hope it will be ok after chain arrive. Have you had similar situations? Do You think that i should replace this spoke or something?

Here are some photos

http://pokazywarka.pl/chainderailleur/

Edited by slawek371 on Saturday 30th September 18:23

Matt_N

9,032 posts

231 months

Saturday 30th September 2017
quotequote all
The limit screws shouldn't really be touched, I'd imagine they come pre-set up.

You've just worked out why you don't change them 99% of the time I'm afraid.

If the gears are a bit sloppy use the barrel adjuster to tune it out, 99% of the time that's all it needs.

anonymous-user

83 months

Saturday 30th September 2017
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Indeed, those screws are for use with caution and not really the thing to use on normal adjustment of the gears

Having to true the wheel to compensate for the bent spoke isn't ideal. You should replace the bent spoke and retension accordingly

And put the limit screws back to the proper place!

You might not need a new chain. If it is long enough, just remove the broken link and put it together again shorter....

HardtopManual

2,901 posts

195 months

Saturday 30th September 2017
quotequote all
Replace the bent spoke and look for signs of damage to the other spokes too. Even a light score can cause a spoke to fail. I bet you regret taking your dork disc off now :-)