Magic gear for Schwinn Homegrown Sweetspot?- Mtbr.com
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  1. #1
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    Magic gear for Schwinn Homegrown Sweetspot?

    I know there are people running single speed Schwinn Sweetspot frames. Has anyone found a magic gear which works with them? I'm building one up for a friend, and sure wouldn't mind not having to use a tensioner.


  2. #2
    Axles of Evil
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    try 34x17

    If my foggy memory is correct, I think we used this on a buddy's Sweetspot.

    Made a nice ride.

  3. #3
    trail rat
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    You need to know chain stay length, and a range of chain rings and rear cogs.

    Magic Gear Calculator http://eehouse.org/fixin/formfmu.php

    This has been posted here dozens of times and it is the second hit by Google every time I enter "magic gear calculator".
    "The physician heals, Nature makes well" - real fortune cookie

    CCCMB trail work for trail access - SLO, CA

  4. #4
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    In some cases, not all you can run an odd ratio like 32/19-17. This seems to work for some reason. 32/16 or 18's have too much slack in the chain. Just a thought.
    I'm not the monster here, you are. You and the rest of that fairy tale trash, poisoning my perfect world.

  5. #5
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    Quote Originally Posted by slocaus
    You need to know chain stay length, and a range of chain rings and rear cogs.

    Magic Gear Calculator http://eehouse.org/fixin/formfmu.php

    This has been posted here dozens of times and it is the second hit by Google every time I enter "magic gear calculator".

    I'm aware of that calculator, but I trust first hand experience more.

  6. #6
    trail rat
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    Quote Originally Posted by bad mechanic
    I'm aware of that calculator, but I trust first hand experience more.
    Then you have far more faith in manufacturing tolerances and consistency than I do!
    "The physician heals, Nature makes well" - real fortune cookie

    CCCMB trail work for trail access - SLO, CA

  7. #7
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    More like I have far less faith in my ability to measure!

  8. #8
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    I am looking into a FS SS but cant afford a Lenz MM right now. What should I look for in a FS design? Am I looking for a no chain growth pivot? Im not up on all the terminology. Id like to avoid a tensioner if possible id rather go 1x9.

  9. #9
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    Personally, I think the old Schwinn Sweetspot and Catamount frames make good full suspension single speeds for a couple reasons:
    - Since they're a URT, the distance between bottom bracket and dropout stay the same, so you can use a eccentric hub or bottom bracket to set tension. It's always to avoid a sprung tensioner.
    - They stiffen up when standing, which, in my opinion, is a good thing on a single speed, since we tend to grind up hills standing.

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