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  1. #1
    Senior Member Tyrell's Avatar
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    8/9 speed triple crank with 7-speed cassette?

    My '92 Trek 1420 came as a 7-speed triple and friction shift front down tube der. The chain rings and cassette are looking like they need replacing and I'm having a hard time sourcing a 7-speed triple crank. I have found some that indicate that they are 8/9-speed compatible though. Will they work ok with a 7-speed cassette? I'm not sure what the difference is regarding spacing between the chain rings but I assume the chainline should be the same. Also, what chain would I need to use? Thanks in advance for the advice!

  2. #2
    Senior Member barba's Avatar
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    No problem. Speeds don't mean much with chainrings.

  3. #3
    Senior Member Tyrell's Avatar
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    Yep, I was actually just browsing at Sheldon's site (God Bless him) and it appears that I should be ok. Hurray!
    http://www.sheldonbrown.com/speeds.html

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