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#1
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fatigued campy shifter mechanism
well folks, here's the debate: is it better that campy shifter
mechanisms are fully serviceable or is it better that shimano be designed without inherent flaws [easily removed stress risers] in the first place? http://home.comcast.net/~carlfoge/do...hift_mech.jpeg this is my broken campy "g-spring" holder ring. the fatigue initiation point is clearly seen originating from the unradiused notch at the root of the spring post. this is not to say that i'm unsatisfied with the function of campy when it's working, quite the opposite, but the only shimano shifters i've ever had problems with are ones where the lube has become gummed up. that's regrettable, but not a design flaw per se. campy clearly have an /easily remedied/ design issue here. thanks to peter for diagnosis & supplying a replacement so promptly. thanks to carl for hosting the pic. |
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#2
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jim beam writes:
well folks, here's the debate: is it better that campy shifter mechanisms are fully serviceable or is it better that shimano be designed without inherent flaws [easily removed stress risers] in the first place? http://home.comcast.net/~carlfoge/do...hift_mech.jpeg this is my broken campy "g-spring" holder ring. the fatigue initiation point is clearly seen originating from the unradiused notch at the root of the spring post. typo in link. Correct is: http://home.comcast.net/~carlfogel/d...hift_mech.jpeg |
#3
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On Sat, 23 Apr 2005 22:08:49 -0500, Jim Smith
wrote: jim beam writes: well folks, here's the debate: is it better that campy shifter mechanisms are fully serviceable or is it better that shimano be designed without inherent flaws [easily removed stress risers] in the first place? http://home.comcast.net/~carlfoge/do...hift_mech.jpeg this is my broken campy "g-spring" holder ring. the fatigue initiation point is clearly seen originating from the unradiused notch at the root of the spring post. typo in link. Correct is: http://home.comcast.net/~carlfogel/d...hift_mech.jpeg Dear Jim, I have a hideous suspicion that the typo was my cut and paste error in an email. Carl Foge |
#4
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"jim beam" wrote in message
news:1114310613.5b108046195ea82fcce1dad468700624@t eranews... well folks, here's the debate: is it better that campy shifter mechanisms are fully serviceable or is it better that shimano be designed without inherent flaws [easily removed stress risers] in the first place? .... and have to buy a whole new shifter? G-springs are easier than earth girls. |
#5
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Out of curiosity, in what year was your shifter made? Some parts were
re-designed in 2000 (including the ring, to remove stress risers), and they fit older shifters. Oh yeah, the ring costs about $5. Meanwhile, lots of stories about STI's failing within the warranty period, especially the last couple of years. SO, either they have inherent flaws undefined (since they are so rarely re-built), or they have serious QC issues. Take your choice... jim beam wrote: well folks, here's the debate: is it better that campy shifter mechanisms are fully serviceable or is it better that shimano be designed without inherent flaws [easily removed stress risers] in the first place? http://home.comcast.net/~carlfoge/do...hift_mech.jpeg this is my broken campy "g-spring" holder ring. the fatigue initiation point is clearly seen originating from the unradiused notch at the root of the spring post. this is not to say that i'm unsatisfied with the function of campy when it's working, quite the opposite, but the only shimano shifters i've ever had problems with are ones where the lube has become gummed up. that's regrettable, but not a design flaw per se. campy clearly have an /easily remedied/ design issue here. thanks to peter for diagnosis & supplying a replacement so promptly. thanks to carl for hosting the pic. |
#6
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richard wrote:
Out of curiosity, in what year was your shifter made? Some parts were re-designed in 2000 (including the ring, to remove stress risers), and they fit older shifters. Oh yeah, the ring costs about $5. Jim's looks like the re-designed one to me. ~PB |
#7
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Jim Flom wrote:
"jim beam" wrote in message news:1114310613.5b108046195ea82fcce1dad468700624@t eranews... well folks, here's the debate: is it better that campy shifter mechanisms are fully serviceable or is it better that shimano be designed without inherent flaws [easily removed stress risers] in the first place? ... and have to buy a whole new shifter? G-springs are easier than earth girls. have you changed one? must be something wrong with the earth girls at your coordinates. |
#8
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Pete Biggs wrote:
richard wrote: Out of curiosity, in what year was your shifter made? Some parts were re-designed in 2000 (including the ring, to remove stress risers), and they fit older shifters. Oh yeah, the ring costs about $5. Jim's looks like the re-designed one to me. ~PB yes it is. |
#9
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"jim beam" wrote in message
news:1114364946.2a6809fa03317d3012613565f71ae4e7@t eranews... Jim Flom wrote: "jim beam" wrote in message news:1114310613.5b108046195ea82fcce1dad468700624@t eranews... well folks, here's the debate: is it better that campy shifter mechanisms are fully serviceable or is it better that shimano be designed without inherent flaws [easily removed stress risers] in the first place? ... and have to buy a whole new shifter? G-springs are easier than earth girls. have you changed one? must be something wrong with the earth girls at your coordinates. Changed an earth girl? Not since I got married, but I am pleased to say I have experience with both mechanisms. And I wouldn'tr even say I am particularly detail- or mechanically oriented. All it takes is patience and paying attention to the dissassembly. |
#10
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On Sun, 24 Apr 2005 20:33:46 GMT, "Jim Flom" wrote:
"jim beam" wrote in message news:1114364946.2a6809fa03317d3012613565f71ae4e7@ teranews... Jim Flom wrote: "jim beam" wrote in message news:1114310613.5b108046195ea82fcce1dad468700624@t eranews... well folks, here's the debate: is it better that campy shifter mechanisms are fully serviceable or is it better that shimano be designed without inherent flaws [easily removed stress risers] in the first place? ... and have to buy a whole new shifter? G-springs are easier than earth girls. have you changed one? must be something wrong with the earth girls at your coordinates. Changed an earth girl? Not since I got married, but I am pleased to say I have experience with both mechanisms. And I wouldn'tr even say I am particularly detail- or mechanically oriented. All it takes is patience and paying attention to the dissassembly. Earth girls? Ron |
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