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Old 03-26-11, 05:10 PM   #1
sonnetg
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Rear derailleur mishaps!

Am I the only one who does not get along with the rear derailleurs? This is the 2nd time my rear derailleur got damaged. I took my hybrid on a ride at nearby MTB trail. On my way back, the rear derailleur got tangled with a twig and just bent like butter. The derailleur hanger snapped as well.



[snapped rear derailleur hanger. Glad no spokes were damaged.]



[Left: New replacement RD, and right is the damaged derailleur, bent like plastic]


I really think i am going to convert my MTB to a single so i can get rid of the rear derailleur, or maybe save up for a hub gear


Share your rear derailleur mishaps, if any!

Last edited by sonnetg; 03-26-11 at 08:31 PM.
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Old 03-26-11, 08:11 PM   #2
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Try a shimano "shadow" type. They tuck in a little better and I've had good luck with em. Spring is broken derailluer season for most riders though.
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Old 03-26-11, 08:30 PM   #3
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Try a shimano "shadow" type. They tuck in a little better and I've had good luck with em. Spring is broken derailluer season for most riders though.
LOL. Yeah. I do always see broken bits and pieces derailleurs scattered all over the MTB trail.




I am glad it didn't happen to my new GT Zaskar. I am not sure how exactly the twig got stuck in the derailleur, but I dont' think any derailleur would have survived it. I have actually seen a someone use a single speed MTB today. I am not sure whether it was an internal hub gear, but it didn't look like one. I normally use a moderately low gear on my MTB, so i dont see why i can't use a single speed. Maybe someday...
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Old 03-26-11, 08:42 PM   #4
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I've had a couple rear derailleurs snap as well - both were mainly my fault. The first was on my tandem when I had it set up as a kid-back (it was my commute vehicle for dropping my daughter off on the way to work. The chain arrangement wasn't the usual type: I ran the timing chain diagonally down from her crankset to mine on the left side and then ran the main chain from my crankset all the way back to the cluster. Made for a very long drive chain and I think when I went over a bump it created a wave in the chain and that jammed the derailleur. The second one was on the return trip from a short tour with a friend. I got a rear flat and I tried to save a little time by fixing it without removing the panniers. Got the flat fixed and then reinstalled the wheel with my friend helping to hold up the loaded bike. Hopped back on and neglected to check that the chain was properly routed on the derailleur pulleys. It twisted the derailleur around but didn't completely break it. But I was afraid that any attempt to straighten it would only make things worse so I positioned it in a usable gear and rode the rest of the way home as a single speed. Once I got home I did make an attempt at straightening it out and sure enough, it immediately snapped.
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Old 03-26-11, 08:49 PM   #5
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LOL. Yeah. I do always see broken bits and pieces derailleurs scattered all over the MTB trail.



Almost looks fossilized. Lol!
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Old 03-27-11, 09:29 AM   #6
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Yup, I normally go through 2 or 3 deraileurs a year. I believe it's more of a problem when you ride trails that are less traveled.
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Old 03-27-11, 09:49 AM   #7
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Almost looks fossilized. Lol!

Yeah. It was interesting. I had to stop and snap. Must have been another frustrated rider. Only option is to hike when there is a epic failure like this. No vehicles or cabs available out there to rescue you on the MTB. The trail is really nice though...and very addictive.

Some pics: https://picasaweb.google.com/sonnet....ures#slideshow

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Old 03-27-11, 09:52 AM   #8
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Got the flat fixed and then reinstalled the wheel with my friend helping to hold up the loaded bike. Hopped back on and neglected to check that the chain was properly routed on the derailleur pulleys. It twisted the derailleur around but didn't completely break it. But I was afraid that any attempt to straighten it would only make things worse so I positioned it in a usable gear and rode the rest of the way home as a single speed. Once I got home I did make an attempt at straightening it out and sure enough, it immediately snapped.
Interesting story. I once accidentally smashed the rear derailleur with the pavement when a bus was passing me on my left. The derailleur and the hanger got bent. I tried to straighten it, but all the gears didn't work. I set it up with a usable gear position till i reached home. Had to replace both the derailleur and the hanger. It took me few weeks just to find the correct hanger. I am about to hit the store and purchase few more spares. You never know when you need the spares.
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