Advertise on Bikeforums.net



User Tag List

Results 1 to 14 of 14
  1. #1
    Junior Member
    Join Date
    Jun 2009
    My Bikes
    46 cm Bianchi (46x16)
    Posts
    8
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    What cog measurement would be best for a 46T crank wheel?

    Frame: 46 cm
    Wheelset: 650c
    Crank wheel: 46T

    So, my crank wheel has been measured at 46T and I'm trying to determine how what cog I should order for my fixed gear. 14T, 16T, or 18T?

    I heard a 14T would be an easier ride, so to speak. I want a smooth easy ride.

    Yet another one of my friends told me that I was being told backwards?

    Also, any ideas on what would be best for a free-wheel?

    I know that this is strictly specific to the rider, some might be too easy, too hard, or just right. It's a trial and error thing. But honestly all of my friends ride huge bikes. 52 cm + and I'm on a 46 cm frame so I can't test ride their bikes comfortably...

  2. #2
    hello roadfix's Avatar
    Join Date
    May 2003
    Location
    Los Angeles
    My Bikes
    thank you for asking
    Posts
    18,502
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I would recommend you start out with about 70 gear inches and see if you like it. That would be a 17T cog for you.
    .cinelli.olympic.surly.long.haul.trucker.kona.ku.surly.steamroller.
    .litespeed.classic.litespeed.firenze.bianchi.pista.dean.colonel.plus.more.

  3. #3
    Junior Member
    Join Date
    Jun 2008
    Posts
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    i ride a 46/17 and works just fine for me.

  4. #4
    * adriano's Avatar
    Join Date
    Nov 2008
    Location
    Baltimore
    My Bikes
    http://velospace.org/node/18951
    Posts
    6,890
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    16t would give you 70 inches. 17t would give you 65 inches. i would suggest the 17t.

  5. #5
    ¡Senor Member! time bandit's Avatar
    Join Date
    Jul 2007
    Location
    South Philly
    Posts
    1,710
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    your friend was right. larger chainring=higher gear, smaller cog=higher gear.

    whoever told you 14 would be easier was wrong.

  6. #6
    .
    Join Date
    Mar 2007
    Posts
    708
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    46/17 works quite well.

  7. #7
    manonthemoon Triple8Sol's Avatar
    Join Date
    Jun 2009
    Location
    Seattle, WA
    My Bikes
    Current custom builds: FG=KHS Flite 100 DH=Transition Blindside FR=Transition Bottlerocket
    Posts
    750
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Best is relative to what kind of shape you're in, and what kind of terrain you're riding on. I've been running 46/18 for awhile, and have been happy with that. May try a 17 or 16 in the near future, too

  8. #8
    Fixed-gear roadie JacoKierkegaard's Avatar
    Join Date
    Dec 2008
    Location
    Wilmington, NC
    My Bikes
    2008 Masi Speciale Fixed
    Posts
    1,048
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It really depends on you. I find 48x16 (78.8 gi) to be pretty ideal for most situations. For a lot of folks that's way too steep, and others prefer something bigger.
    2008 Masi Speciale Fixed

  9. #9
    Senior Member Johnny Nemo's Avatar
    Join Date
    Sep 2007
    Location
    Woolloomooloo, Australia
    My Bikes
    A fixed gear, a vintage roadie and a POS.
    Posts
    415
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    A 17 cog will get you 17 skid patches, so go with that.
    Last edited by Johnny Nemo; 06-22-09 at 09:44 PM.

  10. #10
    * adriano's Avatar
    Join Date
    Nov 2008
    Location
    Baltimore
    My Bikes
    http://velospace.org/node/18951
    Posts
    6,890
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    i am the only one with correct gear inches here. check yourselves.

  11. #11
    Senior Member Johnny Nemo's Avatar
    Join Date
    Sep 2007
    Location
    Woolloomooloo, Australia
    My Bikes
    A fixed gear, a vintage roadie and a POS.
    Posts
    415
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    * EDIT - incorrect gear inches removed to avoid further confusion !
    Last edited by Johnny Nemo; 06-22-09 at 10:26 PM.

  12. #12
    Fixed-gear roadie JacoKierkegaard's Avatar
    Join Date
    Dec 2008
    Location
    Wilmington, NC
    My Bikes
    2008 Masi Speciale Fixed
    Posts
    1,048
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Could be variations in tire size. Or "tyre", since you lot can't be bothered to spell it correctly.
    2008 Masi Speciale Fixed

  13. #13
    G60
    G60 is offline
    Senior Member G60's Avatar
    Join Date
    Feb 2007
    Location
    CA
    Posts
    546
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by littlemiso View Post
    Wheelset: 650c
    Quote Originally Posted by Johnny Nemo View Post
    I checked.. yours are wrong. What calculator did you use?

    According to mine:
    46x17 on a 700x23 tyre = 71.1 inches.
    46x16 on a 700x23 tyre = 75.6 inches
    adriano is correct. because he paid attention to the wheel size the OP is using.

  14. #14
    Senior Member Johnny Nemo's Avatar
    Join Date
    Sep 2007
    Location
    Woolloomooloo, Australia
    My Bikes
    A fixed gear, a vintage roadie and a POS.
    Posts
    415
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Sorry, apologies. Missed the 650. Duh!

    for a smooth ride, I'd go 65-70 gear inches.

    It's spelt tyre over here.
    Last edited by Johnny Nemo; 06-22-09 at 10:27 PM.

Posting Permissions

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