Advertise on Bikeforums.net



User Tag List

Results 1 to 9 of 9
  1. #1
    BudLight
    Join Date
    May 2006
    Location
    Holland, MI
    My Bikes
    Klein roadie, carbon proto mtn bike, burley tandem
    Posts
    113
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Front derailleur?

    Am struggling to keep my Ultegra front derailleur aligned and adjusted. Always liked the old XTR front on my off-road and wondered if it can be used on a 53 tooth cog on a roadie. The lit says no, but has anyone done it anyway?

  2. #2
    hors category TandemGeek's Avatar
    Join Date
    Jan 2002
    Posts
    7,143
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Yes, XTR front derailleurs were spec'd as OEM on road tandems throughout the 90's, perhaps even in the early '00's before Shimano began to offer Ultegra & DuraAce in triple grouppos.

  3. #3
    Senior Member
    Join Date
    Aug 2005
    Location
    New Jersey
    My Bikes
    Colnago C40 HP, Aegis Trident, Cannondale tandem
    Posts
    491
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    i've got Ultegra fronts and they work well. never require any adjustment.

  4. #4
    Co-Mo mojo
    Join Date
    Sep 2006
    Location
    Davis, CA
    My Bikes
    06/07 Co-Mo Speedster, Cannondale Synapse, SR 800, Specialized Hard Rock
    Posts
    170
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Be sure to double-check derailleur mounting bolts. There is nothing quite like a non-fixed derailleur....

  5. #5
    WATERFORD22
    Join Date
    Oct 2005
    Location
    Seattle
    My Bikes
    Bilenky, Co-Motion, 1969 Paramount, Waterford Adventure Cycle, Waterford rs 22, 1980 Davidson etc.
    Posts
    509
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Stripped one in Victoria on a 500 mile cross country trip which include 200 miles of gravel. Ended up having to put in a Tiagra to get home. I have two or three triple front Ultegra der on tandems and one on a touring bike. They are constantly in need of adjusting. I just bought a nos xt front and rear der - thinking about putting these on.

  6. #6
    Member
    Join Date
    May 2001
    Location
    Saranac Lake, NY, USA
    Posts
    26
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Front Derailleur

    Quote Originally Posted by rjberner
    Am struggling to keep my Ultegra front derailleur aligned and adjusted. Always liked the old XTR front on my off-road and wondered if it can be used on a 53 tooth cog on a roadie. The lit says no, but has anyone done it anyway?
    Two problems:

    1) The current XTR F/D is designed for a max big ring of 44-46 teeth, so the radius of the cage will not be optimum.

    2) The more important issue is that a mountain F/D has a different actuation ratio than a road F/D. IOW, the cage will move a different amount per length of cable pull. This is not a big issue with friction shifting, but with index front shifting it is the kiss od death
    Rich Shapiro Gear-To-Go Tandems
    1 Dahinda Rd, Saranac Lake, NY 518-891-1869

    http://www.gtgtandems.com
    Rich@gtgtandems.com

    Saranac Lake Tandem Rally June 14 - June 16, 2013
    http://www.gtgtandems.com/sltr.html

    Tandem Tours:
    http://www.gtgtandems.com/tours2012.html

    Santana, Calfee, Co-Motion, test rides by appointment

  7. #7
    WATERFORD22
    Join Date
    Oct 2005
    Location
    Seattle
    My Bikes
    Bilenky, Co-Motion, 1969 Paramount, Waterford Adventure Cycle, Waterford rs 22, 1980 Davidson etc.
    Posts
    509
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Rich does this mean an older xt or xtr front der will work - what year did the switch take place?

  8. #8
    Member
    Join Date
    May 2001
    Location
    Saranac Lake, NY, USA
    Posts
    26
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by vosyer
    Rich does this mean an older xt or xtr front der will work - what year did the switch take place?
    The max ring size has varied over the years. I do know that the mid ninety's was OK for road size rings.

    I don't know if the actuation ratio actually changed. It may be the same as it always was, just didn't matter until indexed front shifting came along.
    Rich Shapiro Gear-To-Go Tandems
    1 Dahinda Rd, Saranac Lake, NY 518-891-1869

    http://www.gtgtandems.com
    Rich@gtgtandems.com

    Saranac Lake Tandem Rally June 14 - June 16, 2013
    http://www.gtgtandems.com/sltr.html

    Tandem Tours:
    http://www.gtgtandems.com/tours2012.html

    Santana, Calfee, Co-Motion, test rides by appointment

  9. #9
    Senior Member
    Join Date
    Dec 2005
    Location
    Auld Blighty
    My Bikes
    Early Cannondale tandem, '99 S&S Frezoni Audax, '65 Moulton Stowaway, '52 Claud Butler, TSR30, Brompton
    Posts
    2,150
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The actuation ratio did change but I can't remember which year.

Posting Permissions

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