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  1. #1
    Senior Member FR4NCH1SE's Avatar
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    Noob Question about Rear Derailler Swapping

    Hey Guys, I have a road bike that is a 7 speed freewheel in the back, and I had a question, let say I want to upgrade the rear derailler to something in the higher end Shimano, instead of the 2200 on the bike right now, I want to put Tiagra and above.

    I was wondering if I would run in any problems? I assume that high end rear deraillers like tiagra and above only take 8+ speed cassettes. This is where the noob in me starts, I dont know the specifics of this. Are there Rear Deraillers of Tiagra that work on 7 speeds or are they universal?? Sorry I am a big time noob at this stuff, but I am reading a bike mechanic book as we speak.

    Please help.
    "Every Man Dies, Not Every Man Really Lives".

  2. #2
    Elitist Troglodyte DMF's Avatar
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    Any road derailleur will work.

    But why replace it? I'd guess you're having shifting problems?
    Stupidity got us into this mess - why can't it get us out?

    - Will Rogers

  3. #3
    Senior Member FR4NCH1SE's Avatar
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    Quote Originally Posted by DMF View Post
    Any road derailleur will work.

    But why replace it? I'd guess you're having shifting problems?
    Performance, Hello!! And durability, the Derailler I have now is made of plastic.
    "Every Man Dies, Not Every Man Really Lives".

  4. #4
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    Even if the rear derailleur says 8 speed on it you can still use it on a 7 speed freewheel. You will just have to set the low and high stop settings on the derailleur so that it is limited to 7 speeds.

  5. #5
    Elitist Troglodyte DMF's Avatar
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    Quote Originally Posted by FR4NCH1SE View Post
    Performance, Hello!! And durability, the Derailler I have now is made of plastic.
    Performance? What performance? You think a new RD will somehow make you faster?

    Don't worry about plastic. The RD is one of the least stressed components on a bike. If it ever does fall apart, replace it then.
    Stupidity got us into this mess - why can't it get us out?

    - Will Rogers

  6. #6
    Bianchi Goddess Bianchigirll's Avatar
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    Quote Originally Posted by DMF View Post
    Performance? What performance? You think a new RD will somehow make you faster?

    Don't worry about plastic. The RD is one of the least stressed components on a bike. If it ever does fall apart, replace it then.

    I agree if you are a noob upgradeing the shifter just for the sake of upgrading will not make a noticable difference. for short money better tires may make a difference but just save your money and then get higher level bike off Cl or from a local flipper.
    Bianchis '87 Sport SX, '90 Proto, '90 Campione del Fausto Giamondi Specialisma Italiano Mundo, '91 Boarala 'cross, '93 Project 3, '86 Volpe, '97 Ti Megatube, , '90 something Vento 603,

    Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '09 Motobecane SS, '?? Jane Doe (still on the drawing board), '90ish Haro Escape

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