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Problems with triple chainring front derailleur (Ultegra)
I adjusted the front Ultegra derailleur on my Lemond bike by using the
following: http://www.parktool.com/repair_help/...railleur.shtml (I even have a fourth hand tool!) The derailleur does not appear to be shifting far enough over toward the large chainring. In the small chainring, I have to push twice sometimes to get the derailleur to shift to the middle chainring. In the middle chainring, I can use the large cogs on the rear cassette with no problem, but the chain begins to rub on the small cogs. When I'm in the large chainring, I have rubbing on basically all gears but definitely the small cogs of the cassette. To me, it looks that if the derailleur would move farther out (toward the large chainring) by about 1/8 inch, all my problems would be solved. However, the barrel adjuster appears to be broken -- even after I've taken it apart and regreased it, it's incredibly hard to move once put back together. So, it's of no use. I also made sure that there was almost no slack in the cable when the derailleur is in the small chainring (I used the fourth hand tool to take out the slack). Is this a simple matter of perhaps creating even less or no slack in the cable when the derailleur is in the small chainring? Or could the shifter be somehow broken? Or do I need to get a new front barrel adjuster? Or is there something else I should be looking at? Thanks, Bob |
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#2
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Problems with triple chainring front derailleur (Ultegra)
Bob in CT wrote:
I adjusted the front Ultegra derailleur on my Lemond bike by using the following: http://www.parktool.com/repair_help/...railleur.shtml Is this a simple matter of perhaps creating even less or no slack in the cable when the derailleur is in the small chainring? Or could the shifter be somehow broken? Or do I need to get a new front barrel adjuster? Or is there something else I should be looking at? Thanks, Bob Yep, a tiny little slack, line up the travel stop, and you're there. Then adjust the external travle, and use the barrel adjuster to get the trimming on the middle ring. Just watch that you route the cable correctly on the grip, or you'll have horrible problems getting the shifting perfect (I know coz I got it "wrong" even though it looked "right" from the instruction leaflet, and in the end had to take it into the LBS, who laughed in a friendly and caring way, while saying that they have no end of Ultegra triples with wrong cable routing and poor shifting... to my disgust it took less than a minute to get it perfect... and they had so much of a chuckle that they wouldn't charge :-) Good luck, Chris -- ________________________ Chris Walters Hungerford, UK ________________________ |
#3
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Problems with triple chainring front derailleur (Ultegra)
On Tue, 26 Jul 2005 22:11:48 +0100, Chris Walters wrote:
Bob in CT wrote: I adjusted the front Ultegra derailleur on my Lemond bike by using the following: http://www.parktool.com/repair_help/...railleur.shtml Is this a simple matter of perhaps creating even less or no slack in the cable when the derailleur is in the small chainring? Or could the shifter be somehow broken? Or do I need to get a new front barrel adjuster? Or is there something else I should be looking at? Thanks, Bob Yep, a tiny little slack, line up the travel stop, and you're there. Then adjust the external travle, and use the barrel adjuster to get the trimming on the middle ring. Just watch that you route the cable correctly on the grip, or you'll have horrible problems getting the shifting perfect (I know coz I got it "wrong" even though it looked "right" from the instruction leaflet, and in the end had to take it into the LBS, who laughed in a friendly and caring way, while saying that they have no end of Ultegra triples with wrong cable routing and poor shifting... to my disgust it took less than a minute to get it perfect... and they had so much of a chuckle that they wouldn't charge :-) Good luck, Chris Thanks, Chris. I'll also take a look at the cable routing, as I also replaced my handlebars (went wider) so I did reroute everything. -- Using Opera's revolutionary e-mail client: http://www.opera.com/m2/ |
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