1x8 drivetrain?

Discussion in 'The Roadie Hangout' started by rubrduk, Sep 21, 2008.

  1. rubrduk

    rubrduk professional lurker

    Joined:
    Sep 13, 2008
    Messages:
    48
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    la canada
    i've researched it but with no real solid info, so here goes my idea...

    single 38ish front, 13-25 ish cassette 8spd rear with a short cage ultegra or similar and an 8spd xt or xtr shift pod

    will this work?

    my goal is have my primary ring closer to the bottom so the rest of the cassette is for climbing so i need to gear accordingly for the front...but i am slightly concerned about the chainline, or is that not a real issue?
     
  2. onlyontwo

    onlyontwo Not smart enough to shift

    Joined:
    Jun 14, 2007
    Messages:
    447
    Likes Received:
    0
    Trophy Points:
    16
    Occupation:
    Big kid job
    Location:
    Carmel, Indiana
    If this is for anything other than a commuter or a downhill rig you will regret that gearing choice. I run 1x9 with a 32 front and 11-34 rear. It works great, but on long climbs it is a b*tch...my wife runs a 28 front with a 11-34 rear on a 29er. She likes that set-up a lot. Just my .02 cents.

    Cheers,
    Andy
     
  3. davidB

    davidB Active Member

    Joined:
    Jul 14, 2007
    Messages:
    4,563
    Likes Received:
    0
    Trophy Points:
    36
    Location:
    Tustin
    this is the roadie forum ;)

    i cringed when i first read 38 x 25 would be his easiest gear thinking this was for a mtn bike .
     
  4. rubrduk

    rubrduk professional lurker

    Joined:
    Sep 13, 2008
    Messages:
    48
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    la canada
    i should have mentioned this is for a Mary bar road bike built to explore the brutal streets of Los Angeles

    it's not that much climbing, and i am not as svelte (read as: a bit overweight and out of shape) as i'd like to be
     
  5. DirtymikeTDB

    DirtymikeTDB Guest

    Your gearing will be fine, seeing how my fat ass climbs with a 39x25. My only concern would be keeping the chain on. You will need some type of chain device in the front to keep the chain on the top of the chainwheel
     
  6. Rockinthecasbah

    Rockinthecasbah A.D.D. Unleased

    Joined:
    Jun 1, 2007
    Messages:
    7,036
    Likes Received:
    1
    Trophy Points:
    36
    Location:
    Lake Elsinore
  7. DirtymikeTDB

    DirtymikeTDB Guest



    That would work well for dropping the chain to the inside, still need to worry about it dropping to the outside. Might be ok without anything If you set the chainline a little wide.
     
  8. davidB

    davidB Active Member

    Joined:
    Jul 14, 2007
    Messages:
    4,563
    Likes Received:
    0
    Trophy Points:
    36
    Location:
    Tustin
    if you're worried about it dropping to either side, check out the rohloff chain guide

    [​IMG]

    ^not mine, but i do like the one i have
     
  9. rubrduk

    rubrduk professional lurker

    Joined:
    Sep 13, 2008
    Messages:
    48
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    la canada
    that thing is kinda hardcore...i figured it to come with a bash guard as well, lol
     
  10. DirtymikeTDB

    DirtymikeTDB Guest

    That would be perfect!!!
     
  11. bent steel

    bent steel New Member

    Joined:
    Jun 23, 2008
    Messages:
    31
    Likes Received:
    0
    Trophy Points:
    0
    Occupation:
    Finance
    Location:
    Laguna Beach
    I ran 1x9 for a year or so with an n-gear on the inside and a Spot bash guard (any will work, but Spots are super light) on the outside. It worked fine, but the Rohloff thing is certainly cleaner, if not cheaper.
     
  12. Banana Up

    Banana Up New Member

    Joined:
    Mar 10, 2008
    Messages:
    156
    Likes Received:
    0
    Trophy Points:
    0
    Occupation:
    Server
    Location:
    Rancho Cucamonga
    I have a 1x9 with a bash guard, chains has only fallen off once on really rough trial other then that its awesome. I have a 32 tooth front and an 10-32 rear cassette.

    oops just realized this was the roadie forum. disregard my comment unless your looking for a mtn bike setup.
     
  13. thesergeant

    thesergeant Member

    Joined:
    Aug 13, 2008
    Messages:
    449
    Likes Received:
    0
    Trophy Points:
    16
    Location:
    Santa Monica, Ca
    I was running a 38 x 11-25 on my cross bike for awhile. It was okay and I never had any problems, but I ultimately wanted a wider gear range. I ended up going with a 42t x 11x34t and was much happier. Downhill were faster and the uphills were easier. just my 2cents
     
  14. RacinJason

    RacinJason Banned

    Joined:
    Dec 17, 2006
    Messages:
    2,527
    Likes Received:
    0
    Trophy Points:
    0
    Yes!

    Yes that will work.

    I must have one. I am saving up to get that.;)



     

Share This Page

Help keep STR alive, please click the donation button below