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Shimano Ultegra STI Left Shifter Problem

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Shimano Ultegra STI Left Shifter Problem

Old 02-27-09, 03:01 PM
  #1  
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Shimano Ultegra STI Left Shifter Problem

I've been having a problem with my left Shimano Ultegra triple STI shifter. On occasion when shifting from the large chain ring to middle chain ring I push on the small lever and the lever moves without any resistance and doesn’t feel like it engages at all (I don’t know how these shifters work) If I push it one or two more times it engages and it will shift. The bike is about 3 years old and the problem is new. Any ideas what’s going on? Can anything be done? Is the shifter about to go?

Thanks
dwrudy is offline  
Old 02-27-09, 03:19 PM
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pmt
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You might be able to fix it by cleaning it out with a lot of Brakleen or equivalent. Then lubricate it with a light oil. Other folks may use different stuff, like WD-40, but I've had success with the above.

I imagine that anything that will clean out the gunk and then lubricate it will help return it to functionality.
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Old 02-27-09, 03:58 PM
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Yeah, hose your shifters out with WD40 or equivalent to loosen up the grease and remove dirt and crude.

Al
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Old 03-01-09, 10:39 AM
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Ditto.
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