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  1. #1
    Senior Member escarpment's Avatar
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    Smaller cassette= smaller chain?

    Im thinking about switching out my 7 speed cassette from a 12-30 to an 11-23 as I never really use anything over 16 or 18. I have a semi compact crank 44-50.

    Im just curious if i will have to shorten my chain. Im afraid the cassette might be too steep but I want to try it, and I dont want to buy a new chain if I switch back.

    Thanks.

  2. #2
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    Nice to be young and in shape! If you retain the same rear derailleur you do not have to shorten the chain. The derailleur pulley's long cage will take up the slack just as it did before, and won't know that you no longer have the larger cogs.
    There's no such thing as a routine repair.

    Don't tell me what "should" be - either it is, it isn't, or do something about it.

    If you think I'm being blunt take it as a compliment - if I thought you were too weak to handle the truth or a strong opinion I would not bother.

    Please take the time to post clearly so we can answer quickly. All lowercase and multiple typos makes for a hard read. Thanks!

  3. #3
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    Don't forget to adjust your B-screw for the smaller cassette. If you decide to stick with that cassette, shortening your chain may result in smoother shifting. Make sure you can still shift into the big chainwheel/big cog combination without straining anything before you ride it.

  4. #4
    Senior Member escarpment's Avatar
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    thanks guys, glad i asked.

  5. #5
    aka Tom Reingold noglider's Avatar
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    What are you going to do with a 50/11?
    You don't read my signature anyway, do you?

    Tom Reingold, noglider@pobox.com
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  6. #6
    Senior Member Delmarva's Avatar
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    About the same thing I do with a 52 11. Have fun on downhills.

  7. #7
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    There's no need and little (if any) benefit to shortening a chain. Since your chain is already short enough to work with the 12/44 combination, it should be short enough for the 11/44 which is just about the same.

    Not shortening the chain has the added benefit of allowing you to change your mind and going back to the larger cassette.
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  8. #8
    I let the dogs out AlphaDogg's Avatar
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    The 50/11 combo on my roadie is fantastic for maintaining a relatively low cadence (less than 150rpm) on high speed downhills. I used it to get up to a top speed of 49.5mph on a hill that I could coast down at 44mph. Hugely different from the 48/13 on my hybrid.
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  9. #9
    7-speed doomsday prepper ThermionicScott's Avatar
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    Quote Originally Posted by cny-bikeman View Post
    Nice to be young and in shape!
    And to live in a place without hills.

    Like Frank advised, I would leave the chain alone since you're only asking the RD for another half-link of takeup.


    P.S. I'd check which cassette you have before deciding on the new one. Shimano made a 12-28 and a 13-30 7-speed cassette, but no 12-30's that I know of. I'm not aware of any 11-23 7-speed cassettes, either, but the 12-21 would probably be up your alley.
    Last edited by ThermionicScott; 09-28-12 at 07:20 PM.
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  10. #10
    Senior Member escarpment's Avatar
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    I found one made by origin 8
    http://www.ebay.com/itm/290762556446...=p5197.c0.m619

    Its cheap and looks like fun, But I live in a pretty hilly area, moved back to milwaukee. But like i said, I only the first 3 or 4 cogs anyways, 12- 20~ Its only big in the big cogs when I installed new RD. I spend most of my time in the 44 front ring..
    Last edited by escarpment; 09-28-12 at 11:24 PM.

  11. #11
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    Nice.. my commuter could use one of those. Best it has at the moment is 48/12 with a wide spaced rear cassette. 48/11 and nice close spacing would be fun for those 'fredly' moments. Nothing like riding a heavy commuter at speeds people don't expect

  12. #12
    coprolite fietsbob's Avatar
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    Just that you are putting a new cassette and a worn chain together..
    not really a good match.

  13. #13
    aka Tom Reingold noglider's Avatar
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    Quote Originally Posted by ThermionicScott View Post
    And to live in a place without hills.
    I'd rather have hills. I don't like headwinds. And I enjoy hills.
    You don't read my signature anyway, do you?

    Tom Reingold, noglider@pobox.com
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  14. #14
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    Quote Originally Posted by AlphaDogg View Post
    The 50/11 combo on my roadie is fantastic for maintaining a relatively low cadence (less than 150rpm) on high speed downhills. I used it to get up to a top speed of 49.5mph on a hill that I could coast down at 44mph. Hugely different from the 48/13 on my hybrid.
    To each his own, but I've always preferred to tuck and coast on that fast a downhill. More left for the flats and uphills, especially in "rollercoaster" hills where you can partially coast up and then power over the next hill. I can't imagine wanting to pedal at 140 revs when tucking in with pedals level would probably get to almost the same speed on a longer downhill. I've hit 55 mph coasting, according to speedometer of a car next to me on the El Cajon pass going into San Bernadino, CA (pre-computer days).
    Last edited by cny-bikeman; 09-29-12 at 06:22 AM.
    There's no such thing as a routine repair.

    Don't tell me what "should" be - either it is, it isn't, or do something about it.

    If you think I'm being blunt take it as a compliment - if I thought you were too weak to handle the truth or a strong opinion I would not bother.

    Please take the time to post clearly so we can answer quickly. All lowercase and multiple typos makes for a hard read. Thanks!

  15. #15
    Fred-ish rogerstg's Avatar
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    Quote Originally Posted by AlphaDogg View Post
    The 50/11 combo on my roadie is fantastic for maintaining a relatively low cadence (less than 150rpm) on high speed downhills.
    WOW, that's impressive. I have to ask, what do you consider high cadence?

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