Shimano Front Derailleur Trim Adjustment Question
Results 1 to 13 of 13
  1. #1
    RoadBikeReview Member
    Reputation:
    Join Date
    Jun 2015
    Posts
    81

    Shimano Front Derailleur Trim Adjustment Question

    I have a new Giant Revolt with Shimano Ultegra R8000 mechanical group set. I notice that when using the trim feature, there is very little movement of the cage. I have an identical group set on another bike (both new bikes) and when I use the trim on that bike, the cage moves in a way that is normal.

    Can the amount of trim movement be adjusted? Is there a set-up problem I need to explore?

    Jim D

  2. #2
    RoadBikeReview Member
    Reputation:
    Join Date
    Oct 2013
    Posts
    4,153
    If your really interested in adventures of FD adjustments, you'll need to get a barrel adj for the FD cable. It will make everything a lot easier.
    I suspect your cable needs to be loosened 1mm.
    BANNED

  3. #3
    RoadBikeReview Member
    Reputation:
    Join Date
    May 2010
    Posts
    9,501
    The fact that you have an identical group set on another bike that moves more should answer both your questions.

    Maybe it's just me but I find shimano 11 speed trim adjustments to be difficult to get right. Being a brand new bike and all you might want to take it to the shop if you bought it at one.

  4. #4
    'brifter' is f'ing stupid
    Reputation: cxwrench's Avatar
    Join Date
    Nov 2004
    Posts
    15,147
    Quote Originally Posted by duriel View Post
    If your really interested in adventures of FD adjustments, you'll need to get a barrel adj for the FD cable. It will make everything a lot easier.
    I suspect your cable needs to be loosened 1mm.
    No. The 8000 doesn't use a barrel adjuster. If the derailleur isn't set up correctly obviously the trim won't work properly. When it is set up correctly the large ring trim is small, maybe 1.0-1.5mm, the small ring trim is much bigger, 3.0-4.0mm. Since the OP hasn't told us which trim he's talking I'm just guessing that it's the small ring. He does say it's not working the same as his other bike.

    It could be either or a combination of cable tension and low limit.
    #promechaniclife

  5. #5
    RoadBikeReview Member
    Reputation:
    Join Date
    Oct 2013
    Posts
    4,153
    I believe a barrel adj will adj the cable tension.
    BANNED

  6. #6
    'brifter' is f'ing stupid
    Reputation: cxwrench's Avatar
    Join Date
    Nov 2004
    Posts
    15,147
    Quote Originally Posted by duriel View Post
    I believe a barrel adj will adj the cable tension.
    It's obvious that you don't have a clue about how the new toggle link front derailleurs work. Stop now, please.

    They do NOT need a barrel adjuster, cable tension adjustment is built in to the derailleur.
    #promechaniclife

  7. #7
    RoadBikeReview Member
    Reputation:
    Join Date
    Sep 2011
    Posts
    727
    There are a number of videos out there that show how to set these up. It's not like to old days. If you don't follow the steps and set it up correctly, it will not work worth a sh*t. I've seen a number of these set up wrong out of the box on new bikes.

  8. #8
    RoadBikeReview Member
    Reputation:
    Join Date
    Jun 2015
    Posts
    81
    cx,

    I was not aware of the difference between large ring trim and small ring trim. I will take a closer look at this when I get home. Perhaps it is fine as is.

    Jim D

  9. #9
    RoadBikeReview Member
    Reputation:
    Join Date
    Oct 2013
    Posts
    4,153
    If we don't need a barrel adj now, it should be fixed in the time it took to write this!
    BANNED

  10. #10
    RoadBikeReview Member
    Reputation:
    Join Date
    Sep 2011
    Posts
    727
    Quote Originally Posted by duriel View Post
    If we don't need a barrel adj now, it should be fixed in the time it took to write this!
    Come on, enough with the barrel adjuster thing. It has a cable tension adjustment screw built in to the derailleur. It's just not a barrel adjuster.

  11. #11
    RoadBikeReview Member
    Reputation:
    Join Date
    Oct 2013
    Posts
    4,153
    barrel adj
    barrel adj
    BANNED

  12. #12
    'brifter' is f'ing stupid
    Reputation: cxwrench's Avatar
    Join Date
    Nov 2004
    Posts
    15,147
    Quote Originally Posted by duriel View Post
    barrel adj
    barrel adj
    Stop w/ the ass hattery and just admit you don't know what you're talking about and we can all move on.
    #promechaniclife

  13. #13
    RoadBikeReview Member
    Reputation:
    Join Date
    Jun 2015
    Posts
    81
    cx,

    You nailed it. Trim moves different amounts, depending on which ring. It works normally.

    Jim D

Similar Threads

  1. Ultegra front derailleur/ shifter trim?
    By spokenwald in forum Components, Wrenching
    Replies: 21
    Last Post: 03-23-2020, 08:58 AM
  2. Question...Ultegra 6700 Mechanical Front Derailleur and Trim Question
    By albert1028 in forum Components, Wrenching
    Replies: 10
    Last Post: 07-24-2013, 08:25 PM
  3. SRAM Red Front Derailleur Trim
    By StillRiding in forum Components, Wrenching
    Replies: 8
    Last Post: 08-19-2009, 02:45 PM
  4. Cable trim adjustment question?
    By superbad in forum Campagnolo
    Replies: 3
    Last Post: 06-10-2009, 04:32 PM
  5. Sram Red Front Derailleur/ Trim issues
    By northwave2 in forum SRAM
    Replies: 4
    Last Post: 06-06-2008, 09:24 AM

Posting Permissions

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

THE SITE

ABOUT ROADBIKEREVIEW

VISIT US AT

© Copyright 2020 VerticalScope Inc. All rights reserved.