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ULTEGRA TRIPLE SHIFTER TROUBLE
Is my shifter toast? I changed the cables on my Ultegra 6500 shifters
perhaps 500 miles back. Just recently, I've had trouble shifting the front derailleur. From the small chainring, lowest position, a sweep of the left hand only pushes the derailleur over two clicks, i. e. to the lower of the two positions for the middle chainring, rather than pushing it over three clicks to the higher position. Also, when I shift from the big chainring to the middle, it sometimes drops the chain to the lower position rather than the higher position. It has become much harder to push from the middle chainring to the large chainring position also. This is not a problem due to friction where the cable goes under the bottom bracket; that has been cleaned and lubed. I think the shifter was original equipment, meaning it probably has 10,000 miles or more on it. Any thoughts? |
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#2
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ULTEGRA TRIPLE SHIFTER TROUBLE
NeauDL wrote: Is my shifter toast? I changed the cables on my Ultegra 6500 shifters perhaps 500 miles back. Just recently, I've had trouble shifting the front derailleur. From the small chainring, lowest position, a sweep of the left hand only pushes the derailleur over two clicks, i. e. to the lower of the two positions for the middle chainring, rather than pushing it over three clicks to the higher position. Also, when I shift from the big chainring to the middle, it sometimes drops the chain to the lower position rather than the higher position. It has become much harder to push from the middle chainring to the large chainring position also. This is not a problem due to friction where the cable goes under the bottom bracket; that has been cleaned and lubed. I think the shifter was original equipment, meaning it probably has 10,000 miles or more on it. Any thoughts? Hard to say but ensure the cable is in the 'hole' of the shifter and when detached, it is in the 'small' ring poisition, then tighten it to the FD...It may be history but it sounds like the cable is not tight or it is starting at an intermediate position. If all attach-things is OK, flush with WD-40, Spray lube, if still no soap, 2 yr warranty, if outside that-new shifter. Gonna be tough perhaps to find a single 6503-may have to get a 6603......or Campag...no more shifter failures that cannot be fixed. |
#3
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ULTEGRA TRIPLE SHIFTER TROUBLE
You should check the housing end on the downtube to be sure the ferrule
is in good condition. If you force the front shifter too much you can cause the wires in compressionless housing to blow through the ferrule(s) (both plastic and metal). This will result in inconsistent shifting like you describe. It's also possible that you didn't get the other end of the housing seated properly in the shifter and it has recently moved causing the cable to be too slack. You could also have left too much slack in the cable when you installed it and it has now stretched out of alignment. |
#4
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ULTEGRA TRIPLE SHIFTER TROUBLE
Is my shifter toast? I changed the cables on my Ultegra 6500 shifters
perhaps 500 miles back. Just recently, I've had trouble shifting the front derailleur. From the small chainring, lowest position, a sweep of the left hand only pushes the derailleur over two clicks, i. e. to the lower of the two positions for the middle chainring, rather than pushing it over three clicks to the higher position. Also, when I shift from the big chainring to the middle, it sometimes drops the chain to the lower position rather than the higher position. It has become much harder to push from the middle chainring to the large chainring position also. This is not a problem due to friction where the cable goes under the bottom bracket; that has been cleaned and lubed. I think the shifter was original equipment, meaning it probably has 10,000 miles or more on it. Any thoughts? Beyond the other excellent suggestions made, make sure that your shift cable isn't fraying inside the shift lever. That can cause all manner of problems, and whether Campy or Shimano, those cables can be assumed to need replacement at 10k miles. We've seen them fail in as few as 7k. If it breaks off completely, it can be a real pain to remove. --Mike Jacoubowsky Chain Reaction Bicycles www.ChainReaction.com Redwood City & Los Altos, CA USA "NeauDL" wrote in message oups.com... Is my shifter toast? I changed the cables on my Ultegra 6500 shifters perhaps 500 miles back. Just recently, I've had trouble shifting the front derailleur. From the small chainring, lowest position, a sweep of the left hand only pushes the derailleur over two clicks, i. e. to the lower of the two positions for the middle chainring, rather than pushing it over three clicks to the higher position. Also, when I shift from the big chainring to the middle, it sometimes drops the chain to the lower position rather than the higher position. It has become much harder to push from the middle chainring to the large chainring position also. This is not a problem due to friction where the cable goes under the bottom bracket; that has been cleaned and lubed. I think the shifter was original equipment, meaning it probably has 10,000 miles or more on it. Any thoughts? |
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