Results 1 to 20 of 20

Thread: Gearing question

  1. #1
    MoJo Mother Superior sherpaxc's Avatar
    Join Date
    Aug 2005
    Location
    austin
    Posts
    4,569

    Gearing question

    So I moved to Oak Hill and it's about a 35ish minute ride to the trails. I also have some other commuting plans to my work that would require off road capability. I love the 32x20 for a 29er. I have gears right now (1x9) for my upcoming bikepacking trip to the mountains. I really enjoyed having gears on the road riding to the trail but wanted to rip off the rear derailler while on the trail. To much slop and flop. Anyway, I'm looking at the White Ind. Double Double. The gear ratio is a:
    34x16
    31x19

    If I did my calculation right, a 32x20 is 44.6 gear inches
    A 31x19 is a 45.5 gear inches.

    My question is, how do I transfer that information into real world knowledge? Meaning, is it going to make climbing harder or am I going to be spinning more? How close are they?

  2. #2
    MoJo Mother Superior sherpaxc's Avatar
    Join Date
    Aug 2005
    Location
    austin
    Posts
    4,569

  3. #3
    Ron
    Ron is offline
    ____ Ron's Avatar
    Join Date
    Jan 2004
    Location
    austin
    Posts
    489
    i'd go for 36x16 & 32x20. i ran my monocog setup that way for a while was very nice having the tall gear for road riding. you have a cassette hub all ready so you just need antoher 16 cassette cog and 36 4 bolt ring...

  4. #4
    Poppin Fresh Doughboy's Avatar
    Join Date
    Jan 2006
    Location
    In the cinco-dos
    Posts
    5,005
    Does this thread represent undeniable evidence that theory Evolution is true?

  5. #5
    MoJo Mother Superior sherpaxc's Avatar
    Join Date
    Aug 2005
    Location
    austin
    Posts
    4,569
    I'm not getting into the debate about if it's still a SS or not? I could care less about that. I just don't enjoy having a derailler on the bike. All I'm asking is, how close are the gears? I've played with a 32x18,19,20,21,22 on the trails in Austin, mainly the Belt. A 32x20 is what works best for me. How close is a 31x19? It's gotta be super close right?
    Sorry, I am obviously having a hard time understanding this.

  6. #6
    MoJo Mother Superior lost27's Avatar
    Join Date
    Apr 2008
    Location
    Austin
    Posts
    1,668
    Rohloff?

  7. #7
    MoJo Mother Superior sherpaxc's Avatar
    Join Date
    Aug 2005
    Location
    austin
    Posts
    4,569
    Quote Originally Posted by lost27 View Post
    Rohloff?
    It still has a shifter. I am not looking for one of those. I will stop, undo my wheel, change the chainline, put the wheel back on, and roll.

    Ron, a 36 scares me. It's kind of big no? I'm afraid I would nick it up pretty good on the Belt.

  8. #8
    Mojo Oh No! sneezix's Avatar
    Join Date
    Nov 2004
    Location
    The Peanut Gallery
    Posts
    4,311
    Quote Originally Posted by lost27 View Post
    Rohloff?
    You're not Huckleberry!

    A 32x20 is equal to a 31x19.375.

  9. #9
    MoJo Mother Superior sherpaxc's Avatar
    Join Date
    Aug 2005
    Location
    austin
    Posts
    4,569
    Quote Originally Posted by sneezix View Post
    You're not Huckleberry!

    A 32x20 is equal to a 31x19.375.
    So pretty freaking close huh? Hmm... Might have to buy the W.I. Double/Double.

  10. #10
    Poppin Fresh Doughboy's Avatar
    Join Date
    Jan 2006
    Location
    In the cinco-dos
    Posts
    5,005
    Quote Originally Posted by sherpaxc View Post
    I'm not getting into the debate about if it's still a SS or not? I could care less about that. I just don't enjoy having a derailler on the bike. All I'm asking is, how close are the gears? I've played with a 32x18,19,20,21,22 on the trails in Austin, mainly the Belt. A 32x20 is what works best for me. How close is a 31x19? It's gotta be super close right?
    Sorry, I am obviously having a hard time understanding this.
    The 31x19 should be a little higher (harder) than the 32x20. It should be really close though. Dropping one tooth on the back would be like adding 2 up front (to a certain extent).

    I do have to admit that this set up has peeked my intrest in a shifter less bike. I'm helping a buddy set up a new K-Monkey and I'll have to show this him. Of course the price will make him soil his trousers.

  11. #11
    MoJo Mother Superior lost27's Avatar
    Join Date
    Apr 2008
    Location
    Austin
    Posts
    1,668
    Quote Originally Posted by sneezix View Post
    You're not Huckleberry!

    A 32x20 is equal to a 31x19.375.
    Crap... did I speak out of turn? Josh showed me this cool trick with the Rohloff where you don't even need a shifter for it. You can manually shift it if you want... kind of cool if you're adventure racing and break the shifter.

  12. #12
    Uncle Fuzz fuzz's Avatar
    Join Date
    Mar 2005
    Location
    Austin
    Posts
    218
    One more thing... I might be mistaken but I believe you will have to run the double/double free wheel which means you will not be able to use your current cassette hub..... BTW, I love my WI cranks and the service from WI is great!

  13. #13
    MoJo Mother Superior tizzlewizzle's Avatar
    Join Date
    Jul 2007
    Location
    Around
    Posts
    3,171
    Quote Originally Posted by lost27 View Post
    Crap... did I speak out of turn? Josh showed me this cool trick with the Rohloff where you don't even need a shifter for it. You can manually shift it if you want... kind of cool if you're adventure racing and break the shifter.
    He shows that to everbody, I hope he didn't tell you, you are special or he doesn't do that for all the guys who come in the shop...

  14. #14
    MoJo Mother Superior lost27's Avatar
    Join Date
    Apr 2008
    Location
    Austin
    Posts
    1,668
    Quote Originally Posted by tmwoodall View Post
    He shows that to everbody, I hope he didn't tell you, you are special or he doesn't do that for all the guys who come in the shop...
    Thanks... way to hurt my feelings...

  15. #15
    MoJo Mother Superior tizzlewizzle's Avatar
    Join Date
    Jul 2007
    Location
    Around
    Posts
    3,171
    Quote Originally Posted by lost27 View Post
    Thanks... way to hurt my feelings...
    Its ok, no need to be embarrassed, that Josh is a smooth operator when it comes to showing unsuspecting men how his expensive equipment works. He has gotten more than a few of us with his devious ways. Just learn from it and don't let the next oddly charismatic mechanic get so personal so quick. Remember its always best to take it slow, you can't undo what what you already did.

  16. #16
    Ron
    Ron is offline
    ____ Ron's Avatar
    Join Date
    Jan 2004
    Location
    austin
    Posts
    489
    with the white industries double double you're lookin at a new bottom bracket\cranks\rings\rear wheel\freewheel

    or just add a salsa 36t w/longer chainring bolts & 16t cassette cog and if'n it's not your cup-a-tea oh well just out a couple gears


    32x20 = 46.4 gear inches

    31x19 = 47.3 gear inches

  17. #17
    cmc
    cmc is offline
    MoJo Mother Superior cmc's Avatar
    Join Date
    Apr 2006
    Location
    austin
    Posts
    2,398
    Quote Originally Posted by Ron View Post
    32x20 = 46.4 gear inches

    31x19 = 47.3 gear inches
    yep. i was just about to post the same thing.

    the formula is

    Front sprocket / Rear sprocket X Wheel diameter = Gear inches

    less than one gear inch difference would be noticeable, but just barely. not a big change at all.

  18. #18
    MoJo Mother Superior sherpaxc's Avatar
    Join Date
    Aug 2005
    Location
    austin
    Posts
    4,569
    Quote Originally Posted by Ron View Post
    with the white industries double double you're lookin at a new bottom bracket\cranks\rings\rear wheel\freewheel

    or just add a salsa 36t w/longer chainring bolts & 16t cassette cog and if'n it's not your cup-a-tea oh well just out a couple gears


    32x20 = 46.4 gear inches

    31x19 = 47.3 gear inches
    I'm gonna give that a try when I get back from Arkansas. Thanks ya'll!

  19. #19
    Fat MoJo fat bob's Avatar
    Join Date
    Aug 2005
    Location
    Denver / NB
    Posts
    3,320
    Quote Originally Posted by lost27 View Post
    Crap... did I speak out of turn? Josh showed me this cool trick with the Rohloff where you don't even need a shifter for it. You can manually shift it if you want... kind of cool if you're adventure racing and break the shifter.

    Rohloff with a Paul Thumbie?

  20. #20
    MoJo Madman Huckleberry's Avatar
    Join Date
    May 2004
    Location
    Austin
    Posts
    2,068
    Blog Entries
    1
    Quote Originally Posted by lost27 View Post
    Crap... did I speak out of turn? Josh showed me this cool trick with the Rohloff where you don't even need a shifter for it. You can manually shift it if you want... kind of cool if you're adventure racing and break the shifter.
    Indeed! If you don't want a shifter, you can leave that off, and then dismount to manually shift it whenever you like. That way you can ride fast on the road to the trailhead, and then downshift for the real riding.
    NOTICE: Persons attempting to find a motive in this narrative will be prosecuted; persons attempting to find a moral in it will be banished; persons attempting to find a plot in it will be shot.

Remove Ads

Search tags for this page (caching method: table)

There are currently no search engine referrals.
Click on a term to search our site for related topics.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •