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Shimano STX question.

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Drengelus Offline
New Member


Posts: 2
Joined: Aug 2013
Post: #1
Shimano STX question.
Hello everyone, new to the site. I had a big question about a bike I bought used a few days ago.
The bike was pretty beat up, but my biggest question is about the broken rear derailleur. I searched the net for the exact model (Shimano STX RD-MC32) and only have come up with used parts on ebay.
I am not too keen on used parts, since I don't really know how beat up they got, or how much stress was put on them in their lifetime.

My question is what can I replace this with? The bike is twenty-one speed, three on the front seven in the back. I think it's a long cage and 10 tooth on each cogwheel.
Aug 1, 2013 01:27 PM
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painkiller Online
Veteran Member

Peoria, IL. USA
Posts: 1,452
Joined: Mar 2011
Post: #2
RE: Shimano STX question.
if that is all you want is a rear derailluer, and do not care if it is stx or not. Most any direct mount 7/8 speed will work. depends on what you want to spend.I have a nice one for $35 + shipping but you may not want it because it is used and been sitting in a drawer since around 1995. RD-mc31. The vintage stuff commands pretty good prices so just go with an 8speed newer style
on the cheap:
http://www.amazon.com/Shimano-Acera/dp/B003UWJW7W/ref=pd_sbs_sg_2
a little better:
http://www.rei.com/product/753543/shimano-alivio-rm410-rear-derailleur


There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"
Aug 1, 2013 02:25 PM
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nfmisso Offline
Veteran Member

San Jose, CA
Posts: 2,333
Joined: Jul 2010
Post: #3
RE: Shimano STX question.
I am cheaper than PK - his suggestions are very good.

I would go with:
http://www.amazon.com/Shimano-Tourney-TX55-Speed-Derailleur/dp/B003ZM9RDQ/
or if you need one with a hanger:
http://www.amazon.com/Shimano-Tourney-TX55-Speed-Derailleur/dp/B003ZMBNG0/

I have one of these on my World Tourist with thousands of trouble free miles on it.

Make sure you install a new chain, and make sure that your freewheel or cassette is in good condition.

Nigel
Aug 1, 2013 02:32 PM
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Drengelus Offline
New Member


Posts: 2
Joined: Aug 2013
Post: #4
RE: Shimano STX question.
Thanks for the replies guys. I can tell you looking for one on my own was just, oh so confusing. It was starting to drive me bat crazy! Thanks again for the links and replies Smile
Aug 1, 2013 04:01 PM
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