Recently my front shifter cable snapped inside the shifter just before the cable end. I installed a new cable, but cannot get the shifter to shift to the large chainring. It feels like the shifter is sticking and does not want to move to it's full extension. Occasionally I can get it to shift, but cannot get it to do so consistently. I am a mountain biker converted to the road, and don't have much experience with road shifters, so I am not sure if it is something I am doing incorrectly with installing the cable or if there is something wrong with the shifter. My bike is a 2002 Trek 5900 that is in good shape. It has had a few miles put on it, but I would think a Dura Ace shifter would have a longer lifetime than 2 years. Any advice on what to try here would be much appreciated.
Cycling Equipment · Public discussion
Dura Ace Shifter Problem
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- Cycling Equipment
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- 26 December 2004
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- 1 January 2005
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- Splunge Doctor
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http://www.billcotton.com/sti_shifter_repair.htm
You might have a strand or two of old cable material in the shifter. Follow the above directions to clean out the offending dirt. Regardless, its dirt.
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Weisse Luft said:
http://www.billcotton.com/sti_shifter_repair.htm
You might have a strand or two of old cable material in the shifter. Follow the above directions to clean out the offending dirt. Regardless, its dirt.
It may be nothing more that improper cable tension, or hi limit screw if that was fiddled with. I'd save the hose out till a last resort. -
boudreaux said:
It may be nothing more that improper cable tension, or hi limit screw if that was fiddled with. I'd save the hose out till a last resort.
Definitely best to check the cable tension first -- it's gotta be kinda firm, with no slack when you're on the small ring.
Weisse Luft said:
you might have a strand or two of old cable material in the shifter.
I once had a shifter totally incapacitated by one strand of cable that was only 3mm long!!
did you put the cable in properly? The shifter must be "cliked" all the way down (to the small ring) to put the cable in. This my sound stupid, but people do it.
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Thank you for the link. I now have it shifting up to the large chainring, but it sticks on the downshift. From what I can gather this is a common problem with the shifter. I will keep working on it. Cheers!
Weisse Luft said:
billcotton.comsti shifter repair.htmOpen ↗
You might have a strand or two of old cable material in the shifter. Follow the above directions to clean out the offending dirt. Regardless, its dirt.
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Splunge Doctor said:
Thank you for the link. I now have it shifting up to the large chainring, but it sticks on the downshift. From what I can gather this is a common problem with the shifter. I will keep working on it. Cheers!
More likely a bad hi limit screw adjustment or cable tension. MY DA shifters (2 sets)are flawless.The shifter also has to be pressed hard enough to get past the trim position.
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This is a common problem for home mechanics. You more than likely have it routed on the incorrect side of the front derr cable clamp. As the cable comes up from the bottom bracket, make sure it is attached on the "inside" of the bolt clamp, not the "outside" of the bolt clamp.
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