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  1. #1
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    Need chain tensioner advice!

    [B][/BI have fallen in love with rigid ss riding. So now I want to convert my favorite bike to a ss. Its a custom Ted Wojcik 29er frame with 17.5in cs. I was wondering if there is a "magic gear" for that particular length?. I have no idea how the magic gear is determined. Right now my ss bikes are 34x20. If I cannot run a "magic gear" then I need a really clean, unobtrusive chain tensioner. I saw one that mounts on the front instead of the rear. The "YESS LABS ETR/B chain tensioner". Has anyone used this device?. If so please do share your thoughts. Any other really clean systems out there that I need to know about?. I hate the way most look, they destroy the super clean ss lines of the bike imho.
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  2. #2
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    measure your chainstay length and use this to calculate what magic gear might work best- http://eehouse.org/fixin/fixmeup.php there's no guarantee that the calculator will be perfect, but it's a good place to start.

  3. #3
    one chain loop
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    for more accurate result, measure the chainstay in cm and use the calculator mentioned above.
    everything sucks but my vacuum cleaner.

  4. #4
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    From my experience so far so good tensioner that work for me is the one on BB. Less chainskip just need to do something about the noise - I wrap the roller with velcro and it works great silencing the noise.

    On the RD hanger:
    The spring type is good as problem solver especially for ovaled crank, it keeps the chain tension uniform. But the cons is you cannot adjust the tension which is makes the pedaling heavier except for surly(try to backspin to see the resistance).

    The cons is the same like you're using RD, if it hits something it could broke. This also goes for fixed tensioner too.

    What I don't like about sprung RD tensioner it doesn't work for smaller cog less than 15T except if you can adjust it too push-up so more teeth to be wrap by the chain.
    CMIIW.

  5. #5
    mtbr member
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    Thanks for the replies...

    Guys. I will try Fishcreek and Mack_turtle's suggestions first. If that doesn't work out then onto Jackspades suggestions.
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  6. #6
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    If you have an iphone you can check this app out.
    Pretty good stuff...

    Bike Gears, the Bicycle Gear Calculator app for the iPhone and iPod Touch

    /J

  7. #7
    Oaktown Honkey on Strava
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    I don't like the whole rear der tensioner either, but it works well.

    I have 3 bikes, of course the cheapest one w/ tensioner is the least problematic. Go figure.

  8. #8
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    pm sent on tensioners.

  9. #9
    mtbr member
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    Nope, HTC EVO

    Quote Originally Posted by namkrad View Post
    If you have an iphone you can check this app out.
    Pretty good stuff...

    Bike Gears, the Bicycle Gear Calculator app for the iPhone and iPod Touch

    /J
    in an iPhone world!, LOL.
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  10. #10
    mtbr member
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    Got it...

    Quote Originally Posted by Martin6 View Post
    pm sent on tensioners.
    PM replied.
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  11. #11
    surly inbred
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    Magic gears are a temporary solution to a permanent problem.

    I ran a Rennen for a year with zero issues. If I had to do it again I'd have a go at the BB mounted styles like the YES which makes dropping the wheel helluva lot easier.

  12. #12
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    Quote Originally Posted by TroutBum View Post
    Magic gears are a temporary solution to a permanent problem.

    I ran a Rennen for a year with zero issues. If I had to do it again I'd have a go at the BB mounted styles like the YES which makes dropping the wheel helluva lot easier.
    FYI:

    My Ted Wojcik would not work with the Rennen due to the Ritchey dropout. It would take some serious grinding or dremel work to fit.
    Roscoe's Chicken 'n Waffles

  13. #13
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    How about I sell you my White Ind. ENO HUB and disc brake adapter and then there's no need for an "ugly chain tensioner" hanging off your bike... They work great, I have an 21t WI cog on there as well......anybody....anybody.....? Both of my bikes have sliders...no need for this anymore....

  14. #14
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    Quote Originally Posted by pedal-man View Post
    How about I sell you my White Ind. ENO HUB and disc brake adapter and then there's no need for an "ugly chain tensioner" hanging off your bike... They work great, I have an 21t WI cog on there as well......anybody....anybody.....? Both of my bikes have sliders...no need for this anymore....
    He doesn't do disk brakes.

  15. #15
    Turn off the TV
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    try a 1/2 link

  16. #16
    I keep losing the trail
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    @Pedal-man: I do discs... how much are you asking for the ENO setup?

  17. #17
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    You can use halflink implant like this.
    This is my scott voltage YZ1 430mm chain stay length works with 24x15 and 22x15 just maybe it will work with other even-odd teeth combination - haven't try other ratios.

  18. #18
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    I don't really...

    Quote Originally Posted by jackspade View Post


    You can use halflink implant like this.
    This is my scott voltage YZ1 430mm chain stay length works with 24x15 and 22x15 just maybe it will work with other even-odd teeth combination - haven't try other ratios.
    understand how this thing works. I am looking at it but its not making sense to me.
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  19. #19
    Dive Bomber
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    Sorry the pic is too small.
    Notice is on upper part of the chain there's a yellow/gold link that's a halflink.

    I use one halflink for shorthen the chain, so it's basicly an implant - instead of using the a whole halflink.
    I use this trick also for my adjustable drop out bike to keep the chain length short enough.

  20. #20
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    1/2 links make noise ( "chink" or "click") as you spin the cranks, it becomes very annoying, within the first 2 rides...I pulled it off and threw it away.

    @ Hook - As for a price I will pm you. Thx.

  21. #21
    Oaktown Honkey on Strava
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    Jackspade, are you saying you use a SRAM powerlink how?

  22. #22
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    Quote Originally Posted by hoolie View Post
    Jackspade, are you saying you use a SRAM powerlink how?
    No it's not SRAM powerlink.
    It's just ordinary halflink but I swap the roller with the one on the normal chain which is 3/32 - the halflink I use is 1/8 so I match it to 3/32.

    I am currently run 32x18 and this setting has no problem with chain skip compare to 22x13 but I believe the cause is not the halflink.

    63xc.com--How To | Magic Gear

  23. #23
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    If anybody else is interested in the ENO set up....lightly used

    hub/disc brake adapter/21t WI fw/20t ACS fw/hub tool/SS KMC chain all for $250 obo.

    Ride on....

  24. #24
    I keep losing the trail
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    I got your PM, pedal-man. Sorry I haven't responded- apparently my newbie post-count is still too low!

  25. #25
    I keep losing the trail
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    There! That did it! PM sent...

  26. #26
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    OP; have you considered EBBs that retrofit to standard BB shells? If you're not familiar with them, search "forward components ebb" or "exzentriker"

  27. #27
    meow, meow.
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    Looks like Forward Components is down (has been like that for a while now). The only 2 remaining options that I know of are Exzentriker and Philcentric. By the way, I just received a letter from Exzentriker, they say that they will only be producing black and silver cups from now on. So if anyone wants other colors, now is the time to go searching.


    I decided to go with Yess ETR/B for the first attempt. Found that 34-17 looks promising (minimum theoretical chain length is just under 46") for 420 mm chainstays.
    26" rigid SS 4130 BB7 nylon-flats ESI latex-tubes non-lubricated-8spd

  28. #28
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    I have considered

    Quote Originally Posted by Jonesy33 View Post
    OP; have you considered EBBs that retrofit to standard BB shells? If you're not familiar with them, search "forward components ebb" or "exzentriker"
    But am not sure they will work with either my Bontrager Racelite or Truvativ Stylo ss cranks?. I am NOT going to buy a new crank.
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  29. #29
    meow, meow.
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    edouble,
    Exzentriker isn't going to work with GXP it seems. But Philcentric does have an option to support GXP.
    26" rigid SS 4130 BB7 nylon-flats ESI latex-tubes non-lubricated-8spd

  30. #30
    CB2
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    I bet you could have Wojcik replace the dropouts for not much more (maybe less) than some of these solutions. Circle A quoted me under $200 to swap dropouts a few years ago, but I was slow at work and did it myself.

  31. #31
    meh... whatever
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    Quote Originally Posted by edouble View Post
    I saw one that mounts on the front instead of the rear. The "YESS LABS ETR/B chain tensioner". Has anyone used this device?. If so please do share your thoughts.
    wish granted
    "Knowledge is good." ~ Emil Faber

  32. #32
    SpinDoctor
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    Still available? Pics?

    Quote Originally Posted by pedal-man View Post
    If anybody else is interested in the ENO set up....lightly used

    hub/disc brake adapter/21t WI fw/20t ACS fw/hub tool/SS KMC chain all for $250 obo.

    Ride on....
    Pedal-Man,

    Can't PM due to post-count. Can you PM me w/ pics and your email assuming the ENO setup is still available?

    Thanks.

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