Front derailleur cage widths
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  1. #1
    RoadBikeReview Member
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    Front derailleur cage widths

    Front derailleurs are sold as being for 'X speed' setups, assumedly because they use progressively narrower chains so work best with a matching width cage. When I bent the 8 speed that came on my bike I replaced it with an 11 while running a 9 speed chain on 8 speed crank/chainrings (I was planning on upgrading to 10 or 11 speed but changed my mind) and it works fine. I have no real reference as to whether it works well compared to a pricy Dura Ace but it's good enough.

    I'm posting this because yesterday I had to adjust it as there was an intermittent squeak which turned out to be the chain rubbing on the outside of the cage when in the small 3 sprockets at the back. I have a friction shifter so can trim but this made me wonder if I could trim less often if I had a wider cage?

    Any other disadvantages to using a 'too narrow' one would be interesting too.

  2. #2
    'brifter' is a lame word.
    Reputation: cxwrench's Avatar
    Join Date
    Nov 2004
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    14,190
    I guess...but it's one of those things I've never thought about. Ride the bike.
    I work for some bike racers
    I've got some bikes, some guns,
    and a bunch of skateboards

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