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-   -   What rear derailleur can I use? (https://www.bikeforums.net/bicycle-mechanics/554141-what-rear-derailleur-can-i-use.html)

icoblentz 06-21-09 05:16 PM

What rear derailleur can I use?
 
I need to replace the rear derailleur on my Mongoose mountain bike. The previous derailleur jammed and twisted. The only thing I know for surte is that I need a direct mount style as my bike did not have a hanger. I did take some pictures of the mounting area.Thanks for your help.

http://lh6.ggpht.com/_cCYiRD1lM88/Sj...6212009031.jpg

http://lh6.ggpht.com/_cCYiRD1lM88/Sj...6212009032.jpg

http://picasaweb.google.com/lh/photo...uIdvS3oOG_hUNw

http://picasaweb.google.com/lh/photo..._zmXyAucbG5aaw

http://picasaweb.google.com/lh/photo...eat=directlink

http://picasaweb.google.com/lh/photo...eat=directlink

sfclearwater 06-21-09 05:47 PM

The bike in your pictures does appear to have a derailleur hanger. Since it is a mountain bike, looks like a seven speed cassette, and probably has shimano shifters something like this Shimano Alivio:

http://www.rei.com/product/753543

Would be a reasonable replacement.

The only caveat is that since your derailleur twisted and bent it could have also bent the hanger. You can check it by eye, but it may be a good idea to take it to a bike shop and have them check it with a tool like this:

http://www.parktool.com/products/det...=48&item=DAG-2

icoblentz 06-21-09 06:57 PM

Thanks I will find a shop and take it in. Thanks again for the quick response.


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