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  1. #1
    Cutie Pie Tazzman's Avatar
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    Can a 7 speed cassette be used on a 8/9 wheel?

    Whats the difference between a 6/7 and a 8/9. Can some sort of spacer be put in to make up the difference, or is this just possible?

    Thanks

  2. #2
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    Yes, I use a metal 7 speed spacer on the spoke side.

  3. #3
    Cutie Pie Tazzman's Avatar
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    Are these easy to find? Or would I need to find a bikestore nearby?

  4. #4
    Senior Member Grand Bois's Avatar
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    You need a 4.5mm spacer behind the cassette to use a 7 speed cassette on an 8/9 speed hub. You can get them online. That's how I got mine. I don't recall where. I've got two bikes set up that way. I like seven speeds.

  5. #5
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    Bike Tools Etc. has the spacer you need. Here is the link:

    http://www.biketoolsetc.com/index.cg...em_id=WB-NCS45

  6. #6
    Senior Member Retro Grouch's Avatar
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    Quote Originally Posted by Dirtdrop
    You need a 4.5mm spacer behind the cassette to use a 7 speed cassette on an 8/9 speed hub. You can get them online. That's how I got mine. I don't recall where. I've got two bikes set up that way. I like seven speeds.
    There's one more trick that you need to know.

    Your 7-speed cassette will be held together with some little bolts or rivets. You need to remove the bolts or grind the rivets smooth on the backside so the cassette will sit flush with the spacer. Otherwise the cassette will stick out too far and you won't be able to fit the lockring.

  7. #7
    * vpiuva's Avatar
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    Here's hoping your 7 speed cassette is Hyperglide (lockring), not Uniglide (no lockring).

  8. #8
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    Quote Originally Posted by Retro Grouch
    There's one more trick that you need to know.

    Your 7-speed cassette will be held together with some little bolts or rivets. You need to remove the bolts or grind the rivets smooth on the backside so the cassette will sit flush with the spacer. Otherwise the cassette will stick out too far and you won't be able to fit the lockring.
    The other way around this is to install the spacer after the smallest cog and tighten the lockring down on it.

  9. #9
    Luggite bsyptak's Avatar
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    The third way around is to go down to your LBS with wheel and cassette in hand and ask them if they have any old bottom bracket nuts. They come in lots of widths and they fit over the cassette hub body. Try them until you can get the cassette lockring/nut to grab threads.

    Keep in mind that with any of these methods, you'll likely have to readjust your rear derailleur.

  10. #10
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    Quote Originally Posted by bsyptak
    The third way around is to go down to your LBS with wheel and cassette in hand and ask them if they have any old bottom bracket nuts. They come in lots of widths and they fit over the cassette hub body. Try them until you can get the cassette lockring/nut to grab threads..
    Do you mean bottom bracket lockrings?

  11. #11
    Senior Member DieselDan's Avatar
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    Quote Originally Posted by HillRider
    Do you mean bottom bracket lockrings?
    Not necessarily, as old style one piece cranks use big nuts to hold the crank together.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

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