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  1. #1
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    Question on changing rear derailleur

    Obviously, this is my first post. So, quick intro...petite 6' 1" 290 clyde just getting back into biking to do the obvious-get in better shape and lose weight. Got a good deal on a GT Transeo Disc 2.0 because it had a busted rear derailleur. Don't know how it broke, maybe in shipping, but it is a non-starter.

    Seeing as how I am not the strongest yet, I have a 9-speed cassette (got from a buddy-Shimano XT 11-34) that I was thinking of replacing the 8-speed 11-32 currently on the bike along with a new Shimano SLX RD-M662 derailleur. Or should I just replace the derailleur with the SLX and leave the 8-speed alone?

    Thoughts and insight are appreciated....been lurking for a while and have learned much and received much inspiration from this bunch.

  2. #2
    VoodooChile zoste's Avatar
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    May 2008
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    Nice bike!

    I believe that the shifters on your handlebars are indexed on that bike, though. In order to switch from 8 speed to 9 speed I think that you'd need new shifters in addition to the new cassette and new derailleur.

    I could be wrong...there are plenty of folks on here more knowledgeable than I am.

    Oh, yeh...welcome to the forum, and to the obsession.
    Sometimes nothing can be a real cool hand

  3. #3
    Senior Member
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    Quote Originally Posted by zoste View Post
    In order to switch from 8 speed to 9 speed I think that you'd need new shifters in addition to the new cassette and new derailleur.
    Agree. Almost all modern rear shifters are indexed these days. That means that an X-speed rear derailleur needs to be paired with an X-speed shifter, an X-speed cassette and (possibly) an X-speed chain.

    Not a huge amount of difference between an 11-32 and an 11-34 cassette. Why not replace the derailleur, ride the bike for a while, and see how it goes?

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