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  1. #1
    Bicycle Rider & Mechanic Trekbikedude's Avatar
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    New Front Cassette?

    Ok. I love my singled speed trek now and I want to make the change permanent. I know I need to buy a tensioner (right now I am using me rear derauiller) I know I need a new rear cog(cassette I don't think is unassembleable). But My question is can I use the nine speed front chainring with a 1/8 rear bmx cog and a 1/8 chain? Or will the extra side to side chain slop damage the front chainring? Any replies are greatly appreciated.



    Thanks, John
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  2. #2
    King Among Runaways hyperRevue's Avatar
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    Using 1/8 chain on 3/32 chainring/cog is fine.
    Might be slightly noisier but not a big deal.
    "I owe everyone an apology" - hyperrevue

  3. #3
    King Among Runaways hyperRevue's Avatar
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    Oh, and you can't use a singulator (chain tensioner) on a fixed ger so if the Trek has verticle dropouts, better buy an ENO or get a new frame.
    "I owe everyone an apology" - hyperrevue

  4. #4
    Bicycle Rider & Mechanic Trekbikedude's Avatar
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    I will most use something like a rennen chain tensioner.
    On top of the world.

  5. #5
    King Among Runaways hyperRevue's Avatar
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    If you are going to run a brake and never skid or skip, then okay.
    But if not, then I'll repeat that you can't use a singulator/chain tensioner on a fixed gear.
    "I owe everyone an apology" - hyperrevue

  6. #6
    Senior Member brunning's Avatar
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    Quote Originally Posted by hyperRevue
    Oh, and you can't use a singulator (chain tensioner) on a fixed ger so if the Trek has verticle dropouts, better buy an ENO or get a new frame.
    sure you can. the singulator is designed for use on vertical dropout frames with a derailleur mount, and now have single speed freewheels.


  7. #7
    King Among Runaways hyperRevue's Avatar
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    Quote Originally Posted by brunning
    sure you can. the singulator is designed for use on vertical dropout frames with a derailleur mount, and now have single speed freewheels.

    Single speed, yes.
    Not fixed gear.

    They can't hold up to the pressure of skidding and skipping.
    "I owe everyone an apology" - hyperrevue

  8. #8
    Senior Member barba's Avatar
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    Even if you don't skip or skid I would not run a singulator on a fixed gear.

  9. #9
    King Among Runaways hyperRevue's Avatar
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    Thank you.
    I was starting to think I was crazy.
    "I owe everyone an apology" - hyperrevue

  10. #10
    Senior Member morbot's Avatar
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    uhm, he said its a singlespeed, and hes using a derailleur as his tensioner now.. so im pretty sure hes not talking about making a fixed gear.

  11. #11
    King Among Runaways hyperRevue's Avatar
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    Quote Originally Posted by morbot
    uhm, he said its a singlespeed, and hes using a derailleur as his tensioner now.. so im pretty sure hes not talking about making a fixed gear.

    You're not better than me!

    Yeah, okay, I misread.
    I for some reason took "make the change permenant" to mean "make it fixed."
    Carry on...
    "I owe everyone an apology" - hyperrevue

  12. #12
    Senior Member barba's Avatar
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    I am not entirely clear what you are trying to do. Are you planning on buying a new rear wheel that is built for single speed use or just planning on using your old (multi-speed) wheel?

    If it is the latter, you may be able to get away with not using a tensioner. Just buy one of those surly cogs and a bunch of spacers on your old wheel. You may be able to get the chainline to work and you can stick with a standard 3/32 chain (I would not mess with 1/8 unless you have to, especially for a free wheel conversion).

  13. #13
    Senior Member Grand Bois's Avatar
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    Try to find the magic gear so you don't need a tensioner.

    http://community.webshots.com/photo/...8014369jHohCP#

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