Advertise on Bikeforums.net



User Tag List

Results 1 to 14 of 14
  1. #1
    DoubleDipTheChip
    Join Date
    Jan 2007
    Posts
    35
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    55 or larger chainrings for Ultegra?

    Hello all,

    I find that we spin about 15% slower on our tandem, thus I am wishing for taller gearing. Even with an 11T on the rear (and std 53 on front) we get spun out easily on our group rides (when we are rippin' on the down hills).

    Where is a good source for a 55 or even larger chainring for Ultegra 9 spd 130 bcd cranks?

    Anyone have a good used one they don't use and want to sell?

    Thanks,

    CJS
    Last edited by CactusJackSlade; 06-22-07 at 04:23 PM.

  2. #2
    Senior Member
    Join Date
    Jan 2007
    Location
    Central Maine
    Posts
    156
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I use FSA rings... I currently have a 55-42 rings installed. They are time trial-triathalon rings... Shimano has some avalable also. If your middle ring is a 39 it will also need to be changed [these new shift systems are fussy on sizes].

    glenn

  3. #3
    Cyclist, Inline SpeedSk8r Sk8erByker's Avatar
    Join Date
    Jun 2005
    Location
    Denison, TX
    My Bikes
    Co-Motion Supremo Tandem, Co-Motion Periscope Co-Pilot Tandem
    Posts
    29
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    We have a set of FSA rings (130 bcd, 55-44-32) we're not using & will sell. We'll sell all 3 as a set or any individually. Email me if you are interested: sk8erbyker at gmail dot com.
    Charlie & Pat

  4. #4
    Senior Member
    Join Date
    Nov 2006
    Location
    Lafayette, Colorado
    My Bikes
    1998 Co-Motion Co-Pilot
    Posts
    577
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Our tallest gear is a 54/11. We have pedaled over 45 mph on a downhill. How fast do you want to go?

  5. #5
    Senior Member
    Join Date
    Jul 2006
    Location
    Buenos Aires, Argentina
    My Bikes
    Co-Motion Mocha, Trek T100, Schwinn Fastback Comp, Specialized Stumpjumper
    Posts
    378
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    700c or 26" wheels?

  6. #6
    Senior Member zonatandem's Avatar
    Join Date
    Dec 2003
    Location
    Tucson, AZ
    My Bikes
    ariZona carbon fiber tandem & single
    Posts
    10,037
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Tuck in and coast . . . done 53 mph that way.
    In the 'old days' with freewheels, have spun out a 56 x 14.

  7. #7
    DoubleDipTheChip
    Join Date
    Jan 2007
    Posts
    35
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by oldacura
    Our tallest gear is a 54/11. We have pedaled over 45 mph on a downhill. How fast do you want to go?

    Faster, FASTER!!!!!

    We've gone 56 tuck and coast... down hill and with a 25mph tail wind! hum almost enough for a speeding ticket!

  8. #8
    DoubleDipTheChip
    Join Date
    Jan 2007
    Posts
    35
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Xanti Andia
    700c or 26" wheels?

    700c

  9. #9
    DoubleDipTheChip
    Join Date
    Jan 2007
    Posts
    35
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Fenlason
    I use FSA rings... I currently have a 55-42 rings installed. They are time trial-triathalon rings... Shimano has some avalable also. If your middle ring is a 39 it will also need to be changed [these new shift systems are fussy on sizes].

    glenn

    Are you running a tripple?... or just a double?

  10. #10
    Member
    Join Date
    Apr 2006
    Posts
    32
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I recommend to look at www.gebhardt.cz
    130/5 up to 70 teeth will do!
    I'm realy satisfied with the quality: I use it for years.
    The don't however sell to individuals so you probably have to find an agent in your country.
    Good luck. (Hope you have excellent brakes!)

  11. #11
    Senior Member
    Join Date
    Jan 2007
    Location
    Central Maine
    Posts
    156
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by CactusJackSlade
    Are you running a tripple?... or just a double?

    I am running the 55-42 as a double. I have an 11-34 cass. but want an 11-28.

    glenn

  12. #12
    Member
    Join Date
    Apr 2006
    Posts
    32
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I ment ofcourse : They don't however sell to individuals so you probably have to find an agent in your country.

  13. #13
    DoubleDipTheChip
    Join Date
    Jan 2007
    Posts
    35
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    sk8erbyker hooked me up with a triple set up... now a 55x11 should be plenty on the top end!

  14. #14
    Senior Member
    Join Date
    Jan 2007
    Location
    Central Maine
    Posts
    156
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    yes the 55 will help

    I have a 56/44 on hand for when I get in shape

    glenn

Posting Permissions

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