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Date: 26 Jun 2007 22:36:44
From: Luigi de Guzman
Subject: Failure Modes for Shimano Brifters?
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I have a set of Shimano Sora brifters. The left-hand unit has been giving me trouble lately--it's taking two "clicks" to shift from the granny to the middle cog. How do I know when the indexing is wearing out? Or is this just something that can be adjusted? -Luigi -- Luigi de Guzman http://ouij.livejournal.com
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Date: 27 Jun 2007 10:11:00
From: Callistus Valerius
Subject: Re: Failure Modes for Shimano Brifters?
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> I have a set of Shimano Sora brifters. The left-hand unit has been giving > me trouble lately--it's taking two "clicks" to shift from the granny to > the middle cog. > > How do I know when the indexing is wearing out? Or is this just something > that can be adjusted? > > -Luigi ========= I think your fd is out of adjustment. When my LH sora failed, I would move the paddle and nothing would move at all. It failed at around 18,000 miles if I remember right.
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Date: 26 Jun 2007 21:40:28
From: Camilo
Subject: Re: Failure Modes for Shimano Brifters?
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On Jun 26, 3:34 pm, RBrickston <rb20170REM...@yahoo.com > wrote: > In article <0yggi.15852$Zg5.6...@newsfe19.lga>, luigi12...@cox.net says... > > > I have a set of Shimano Sora brifters. The left-hand unit has been giving > > me trouble lately--it's taking two "clicks" to shift from the granny to > > the middle cog. > > > How do I know when the indexing is wearing out? Or is this just something > > that can be adjusted? > > > -Luigi > > My 105 does that and always has, I always thought it to be a trim > function. First click gets it on the ring, second click moves it over just > a little more in case of chain rub. Your fd has probably out of adjustment > and needs the second click just to get on the ring. My ultegra shifter (dura ace rd) has always taken "two clicks" to go from small ring to middle ring, and I've been told and read this is how it's supposed to be. The "third click" position (counting furthest out as #1, furthest in as #4) is a trim position whether you are on the middle or smallest ring.
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Date: 26 Jun 2007 23:34:52
From: RBrickston
Subject: Re: Failure Modes for Shimano Brifters?
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In article <0yggi.15852$Zg5.6439@newsfe19.lga >, luigi12081@cox.net says... > I have a set of Shimano Sora brifters. The left-hand unit has been giving > me trouble lately--it's taking two "clicks" to shift from the granny to > the middle cog. > > How do I know when the indexing is wearing out? Or is this just something > that can be adjusted? > > -Luigi My 105 does that and always has, I always thought it to be a trim function. First click gets it on the ring, second click moves it over just a little more in case of chain rub. Your fd has probably out of adjustment and needs the second click just to get on the ring.
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