Advertise on Bikeforums.net



User Tag List

Results 1 to 9 of 9
  1. #1
    STICK IT IN YOU TeddyKGB's Avatar
    Join Date
    Jul 2008
    Location
    Orange County, CA
    My Bikes
    Giant XTC 2, Trek 2.1
    Posts
    401
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Upgrading Front Derailleur/Shifters

    Hey guys, I have a 2008 Trek 2.1 with Shimano 105's for the rear derailleur and Shimano Tiagra's for the front derailleur. While the performance of the Tiagra component have not been horrible, I have heard that the 105 will perform a lot better. So, I'm thinking about upgrading my front derailleur to a 105. Do you think that it would be worth the money? If so, what are the parts I need to buy to replace it?

    Another thing...my shifters are both Tiagra...should I upgrade those as well?

    Thanks for all the help, I did a search for my question and couldn't find anything so I'm sorry if this is constantly posted. I just don't know if it is worth the extra money to upgrade these components. Thanks again!
    2008 Trek 2.1

  2. #2
    Senior Member Bill Kapaun's Avatar
    Join Date
    Feb 2007
    Location
    Mid Willamette Valley, Orygun
    My Bikes
    86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
    Posts
    6,498
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Tiagra is just one step below 105.
    I personally wouldn't make the change. Too much $ for a "perceived" upgrade.
    Chances are you could "tweak" the current FDER and get better performance too. Little things that really aren't worth the effort like playing with the FDER height in .5MM increments, cage alignment etc.
    Then again, you could sell the old FDER and let someone else get a "perceived" upgrade from their Sora

  3. #3
    STICK IT IN YOU TeddyKGB's Avatar
    Join Date
    Jul 2008
    Location
    Orange County, CA
    My Bikes
    Giant XTC 2, Trek 2.1
    Posts
    401
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Cool man, maybe I'll just hold of on the switch. What about the shifters? They are both Tiagra-should I upgrade those or it won't make too much of a difference?
    2008 Trek 2.1

  4. #4
    Senior Member
    Join Date
    May 2007
    Location
    SW Idaho
    Posts
    644
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Ditto the above... The 105 is a little slicker, but it's not one of the upgrades that's going to make you go "Oh, wow!"

    You can run a 105 derailleur with your Tiagra shifters no problem.

    Good luck whatever you decide.

  5. #5
    Senior Member z415's Avatar
    Join Date
    Apr 2006
    Location
    Gainesville/Tampa, FL
    My Bikes
    Trek 1000, two mtbs and working on a fixie for commuting.
    Posts
    2,347
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by dwr1961 View Post
    Ditto the above... The 105 is a little slicker, but it's not one of the upgrades that's going to make you go "Oh, wow!"

    You can run a 105 derailleur with your Tiagra shifters no problem.

    Good luck whatever you decide.
    I tried a new 105 and a very used Tiagra (shifters) and it was oh wow, but other that that probably nothing. The 105 used so much less effort to shift, but then it was new compared to old and crashed Tiagras. For the RD the weight difference is cool, but a performance difference is minimal. I would not pay for either unless my equipment was very worn.

    As for the FD, I know sometimes they can be finicky and maybe an upgrade would fix things, but maybe not.
    Last edited by z415; 08-25-08 at 05:51 AM.
    Falling is learning...[SIGPIC][/SIGPIC]...learn to not fall in a box.
    Any good American will watch THIS -and- WHERE WAS MY BIKE MADE?

  6. #6
    Senior Member capwater's Avatar
    Join Date
    Dec 2004
    Location
    Quahog, RI
    My Bikes
    Giant TCR Comps, Cdale R5000, Klein Q-Pro, Litespeed Siena, Piasano 105, Redline Conquest Pro, Voodoo Bizango, Fuji Aloha
    Posts
    1,509
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I built a disposable crit bike a few years ago with Tiagra 9 speed shifters. Properly adjusted with good cables/housing they perform flawlessly. Even Dura Ace, if improperly maintained, will shift like crap.

  7. #7
    Senior Member
    Join Date
    Feb 2005
    Location
    Oklahoma
    My Bikes
    Trek 510, Trek 5500, Colnago C-50
    Posts
    8,858
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    Upgrade only when the old stuff is worn out.
    Al

  8. #8
    STICK IT IN YOU TeddyKGB's Avatar
    Join Date
    Jul 2008
    Location
    Orange County, CA
    My Bikes
    Giant XTC 2, Trek 2.1
    Posts
    401
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Well, it looks like I'm going to hold off on the switch if it is not going to make that much of a performance difference. Seems like I can spend that money on things that would be more sensible, i.e. new saddle, wheels, etc. Another thing though-I really want to learn how to work on the derailleurs myself rather than take it into a bike shop every time it needs adjusting. I'm a beginner at the sport and have no idea where to start...Anybody have any recommendations or books with instructions on how to learn to keep my derailleurs in tip-top shape? Thanks!
    2008 Trek 2.1

  9. #9
    Senior Member z415's Avatar
    Join Date
    Apr 2006
    Location
    Gainesville/Tampa, FL
    My Bikes
    Trek 1000, two mtbs and working on a fixie for commuting.
    Posts
    2,347
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by TeddyKGB View Post
    Well, it looks like I'm going to hold off on the switch if it is not going to make that much of a performance difference. Seems like I can spend that money on things that would be more sensible, i.e. new saddle, wheels, etc. Another thing though-I really want to learn how to work on the derailleurs myself rather than take it into a bike shop every time it needs adjusting. I'm a beginner at the sport and have no idea where to start...Anybody have any recommendations or books with instructions on how to learn to keep my derailleurs in tip-top shape? Thanks!
    Parktool.com > "Repair Help" That is the source for a quick overview and how to do things fast.

    If you want very detailed information along with whys and opposed to just do it, then Google Sheldon Brown and go to his website. I think SheldonBrown.com/.net.
    Falling is learning...[SIGPIC][/SIGPIC]...learn to not fall in a box.
    Any good American will watch THIS -and- WHERE WAS MY BIKE MADE?

Posting Permissions

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