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  1. #1
    Senior Member miamijim's Avatar
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    Rehabilitating sticky STI's.....a new approach.

    I recently picked up a 2001 model bike with non-functioning RSX STI levers. The bike was purchased and ridden no more than 2 or 3 times and put away...for 8 years. Both levers didnt shift up or down.

    Sticky STI's, no problem, flush and lub. Nope, not happening. Knowing that the problem was hardend/sticky grease I thought of ways to soften it up. Heat!!!! Ok, so I removed a lever and ran it under blistering hot tap water for a few minutes.

    Presto. It worked like a charm!!!! The heat softened up the old lub and allowed the Tri-Flow I lubed it with to work into the bits.

    So...onto lever #2 and not wanting to remove it from the bike. Hmmmm....will a hair dryer work?

    Presto #2!!! Within 2 minutes of blasting the lever with the hottest heat it freed right up.

    If your levers are full of road debris etc. this technique probably wont work as the debris will need to be flushed out. But if you have a STI's that haven't been used much and are sluggish/will not shift try heating them up.

    Peace...Jim
    WWW.CYCLESPEUGEOT.COM 2005 Pinarello Dogma; 1991 Paramount PDG 70 Mtb; 1976? AD Vent Noir; 1989 LeMond Maillot Juane F&F; 1993? Basso GAP F&F; 1989 Terry Symmetry; 2003 Trek 4700 Mtb; 1983 Vitus 979

  2. #2
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    Quote Originally Posted by miamijim View Post
    I recently picked up a 2001 model bike with non-functioning RSX STI levers. The bike was purchased and ridden no more than 2 or 3 times and put away...for 8 years. Both levers didnt shift up or down.

    Sticky STI's, no problem, flush and lub. Nope, not happening. Knowing that the problem was hardend/sticky grease I thought of ways to soften it up. Heat!!!! Ok, so I removed a lever and ran it under blistering hot tap water for a few minutes.

    Presto. It worked like a charm!!!! The heat softened up the old lub and allowed the Tri-Flow I lubed it with to work into the bits.

    So...onto lever #2 and not wanting to remove it from the bike. Hmmmm....will a hair dryer work?

    Presto #2!!! Within 2 minutes of blasting the lever with the hottest heat it freed right up.

    If your levers are full of road debris etc. this technique probably wont work as the debris will need to be flushed out. But if you have a STI's that haven't been used much and are sluggish/will not shift try heating them up.

    Peace...Jim
    Great idea. Thats usin' the old noggin!
    Il faut de l'audace, encore de l'audace, toujours de l'audace

    1980 3Rensho-- 1975 Raleigh Sprite 3spd
    1990s Raleigh M20 MTB--2007 Windsor Hour (track)
    1988 Ducati 750 F1

  3. #3
    Senior Member
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    I wonder if 30 seconds in the microwave would work?

  4. #4
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    It's like the opposite of what would happen with my old rapidfire STX-RC shifters. They would work fine all summer, then stop shifting once the temperature dipped below freezing.
    The will to win is nothing without the will to prepare. -Juma Ikangaa

  5. #5
    Senior Member miamijim's Avatar
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    Quote Originally Posted by HillRider View Post
    I wonder if 30 seconds in the microwave would work?
    Trust me...I almost considered a 15 second blast.
    WWW.CYCLESPEUGEOT.COM 2005 Pinarello Dogma; 1991 Paramount PDG 70 Mtb; 1976? AD Vent Noir; 1989 LeMond Maillot Juane F&F; 1993? Basso GAP F&F; 1989 Terry Symmetry; 2003 Trek 4700 Mtb; 1983 Vitus 979

  6. #6
    It's MY mountain DiabloScott's Avatar
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    Quote Originally Posted by miamijim View Post

    Sticky STI's, no problem, flush and lub. Nope, not happening. Knowing that the problem was hardend/sticky grease I thought of ways to soften it up. Heat!!!! Ok, so I removed a lever and ran it under blistering hot tap water for a few minutes.

    Peace...Jim
    Maybe you could just heat up the spray can of lube to about 250 and squirt that in there. ??

    http://diabloscott.blogspot.com/

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