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#11
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"Mark Wolfe" wrote in message news:ZiN6d.267763$4o.8765@fed1read01... rant My Dura Ace (7700) right brifter just decided to stop upshifting last Friday on the commute home. From what I'm seeing this is a very common failure on shimano STI's. It seems that if you hold the brake lever it will shift, but if you don't, it doesn't seem to engage. Upon disassembly, nothing looked terribly wrong inside. There was a little bit of wear on the inner lever, which I suspect coupled with the movement on the main lever keeps it from engaging. Anyway, after googling I find this is common, and that my lever may have been under warantee (so much for trying to fix it myself). Right now I'm looking at 2 other sets of STI and wondering how long they'll last now. One is Ultegra on my daughters/wife's bike (daughter pretty much owns it now), and the other is Sora 8 speed on the other daughters Terry. In the mean time I've ordered a Jtek shiftmate which I hear is the "bomb", and a pair of Campy Chorus (aluminum levers) 10 speed brifters. The bike is in the stand, and I'm waiting for parts. Right now I'm really irritated about the situation, as I've never dropped the bike, ridden it in the rain, and yes, it gets wiped down with a towel and washed regularly. I'm kicking myself for not going Campy on the build, since that's how Schwinn would've done it. (Waterford Paramount) I think with the jtek I'll have the best of both worlds. Campy rebuildable levers, with wheel and cassette selection of Shimano and 3rd party. Plus I can throw a Triple on it for next years Death Ride. I'm curious as to if anyone has found a cure for the dead brifter. The way I look at it, it has cost me 220 miles over the last week. Not to mention $15 in gas while the bike is down. /rant I am still using 8sp STI from, what, about 1992. The only problem I have is lack of lubrication during the rainy season and loss of the anchor screws that hold the down shift lever to the back of the main lever. I replaced these with a couple of screws from the local hardware store and filed down the heads so they clear the lever body. These levers have many thousands of miles on them. It does not sound like you give your DA levers hard service (no riding in the rain, dusting the bike regularly), so they should last many years. If not, get warranty replacement -- although I know you have already bought the Campagnolo. Still get warranty replacement and sell them cheap on e-Bay. -- Jay Beattie. |
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#12
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Mark Wolfe wrote in message news:ZiN6d.267763$4o.8765@fed1read01...
rant My Dura Ace (7700) right brifter just decided to stop upshifting last Friday on the commute home. From what I'm seeing this is a very common failure on shimano STI's. It seems that if you hold the brake lever it will shift, but if you don't, it doesn't seem to engage. Upon disassembly, nothing looked terribly wrong inside. There was a little bit of wear on the inner lever, which I suspect coupled with the movement on the main lever keeps it from engaging. Anyway, after googling I find this is common, and that my lever may have been under warantee (so much for trying to fix it myself). Right now I'm looking at 2 other sets of STI and wondering how long they'll last now. One is Ultegra on my daughters/wife's bike (daughter pretty much owns it now), and the other is Sora 8 speed on the other daughters Terry. In the mean time I've ordered a Jtek shiftmate which I hear is the "bomb", and a pair of Campy Chorus (aluminum levers) 10 speed brifters. The bike is in the stand, and I'm waiting for parts. Right now I'm really irritated about the situation, as I've never dropped the bike, ridden it in the rain, and yes, it gets wiped down with a towel and washed regularly. I'm kicking myself for not going Campy on the build, since that's how Schwinn would've done it. (Waterford Paramount) I think with the jtek I'll have the best of both worlds. Campy rebuildable levers, with wheel and cassette selection of Shimano and 3rd party. Plus I can throw a Triple on it for next years Death Ride. I'm curious as to if anyone has found a cure for the dead brifter. The way I look at it, it has cost me 220 miles over the last week. Not to mention $15 in gas while the bike is down. /rant Perhaps you should change your diet. They have been Sweet Like Pork to me. |
#13
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Mark Wolfe wrote in message news:ZiN6d.267763$4o.8765@fed1read01...
rant My Dura Ace (7700) right brifter just decided to stop upshifting last Friday on the commute home. From what I'm seeing this is a very common failure on shimano STI's. It seems that if you hold the brake lever it will shift, but if you don't, it doesn't seem to engage. Upon disassembly, nothing looked terribly wrong inside. There was a little bit of wear on the inner lever, which I suspect coupled with the movement on the main lever keeps it from engaging. Anyway, after googling I find this is common, and that my lever may have been under warantee (so much for trying to fix it myself). Right now I'm looking at 2 other sets of STI and wondering how long they'll last now. One is Ultegra on my daughters/wife's bike (daughter pretty much owns it now), and the other is Sora 8 speed on the other daughters Terry. In the mean time I've ordered a Jtek shiftmate which I hear is the "bomb", and a pair of Campy Chorus (aluminum levers) 10 speed brifters. The bike is in the stand, and I'm waiting for parts. Right now I'm really irritated about the situation, as I've never dropped the bike, ridden it in the rain, and yes, it gets wiped down with a towel and washed regularly. I'm kicking myself for not going Campy on the build, since that's how Schwinn would've done it. (Waterford Paramount) I think with the jtek I'll have the best of both worlds. Campy rebuildable levers, with wheel and cassette selection of Shimano and 3rd party. Plus I can throw a Triple on it for next years Death Ride. I'm curious as to if anyone has found a cure for the dead brifter. The way I look at it, it has cost me 220 miles over the last week. Not to mention $15 in gas while the bike is down. /rant Perhaps you should change your diet. They have been Sweet Like Pork to me. |
#14
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Mark Wolfe wrote in message news:ZiN6d.267763$4o.8765@fed1read01...
party. Plus I can throw a Triple on it for next years Death Ride. I'm curious as to if anyone has found a cure for the dead brifter. The way I look at it, it has cost me 220 miles over the last week. Not to mention $15 in gas while the bike is down. /rant Not so sure that STI failure is "common". I have 105 and Ultegra STI brifters with tens of thousands of miles on them and not a single failure. Same for my friends. And the ability to change double-triple is not unique to Campy; all Ultregra/105 brifters since about 2001 are capable of either. Now the question is, is your brifter dead or just in need of cleaning? Most times folks think they have a dead STI brifter a good flush with WD-40 seems to cause a resurrection. BTW, why didn't you just throw a DT shifter on it until you came up with a game plan? Simple, easy, no miles lost. And *that*, not a Campy brifter, is how Schwinn did it! - rick |
#15
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Mark Wolfe wrote in message news:ZiN6d.267763$4o.8765@fed1read01...
party. Plus I can throw a Triple on it for next years Death Ride. I'm curious as to if anyone has found a cure for the dead brifter. The way I look at it, it has cost me 220 miles over the last week. Not to mention $15 in gas while the bike is down. /rant Not so sure that STI failure is "common". I have 105 and Ultegra STI brifters with tens of thousands of miles on them and not a single failure. Same for my friends. And the ability to change double-triple is not unique to Campy; all Ultregra/105 brifters since about 2001 are capable of either. Now the question is, is your brifter dead or just in need of cleaning? Most times folks think they have a dead STI brifter a good flush with WD-40 seems to cause a resurrection. BTW, why didn't you just throw a DT shifter on it until you came up with a game plan? Simple, easy, no miles lost. And *that*, not a Campy brifter, is how Schwinn did it! - rick |
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#18
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I was able to set up a mirage 9 speed shifter from Peter's shop with my
otherwise-shimano drivetrain when my 9 speed dura ace lever similarly went tits-up. By mounting the derailleur cable further inboard using a couple of large washers, I was able to decrease the throw-per-shift of the dura ace derailleur. It works fine, and I like the clean look of the lever. BTW, I've got a lance-style downtube shifter for the front. -- -------------------------- Andre Charlebois AGC-PC support http://agc-pc.tripod.com BPE, MCSE4.0, CNA, A+ "Qui si parla Campagnolo " wrote in message ... gevans- You could pick up a tiagra shifter for about a $120 at any bike shop on your way home from work. BRBR Or a SET of Campagnolo shifters for the same price. Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302 (303)440-3535 http://www.vecchios.com "Ruote convenzionali costruite eccezionalmente bene" |
#19
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I was able to set up a mirage 9 speed shifter from Peter's shop with my
otherwise-shimano drivetrain when my 9 speed dura ace lever similarly went tits-up. By mounting the derailleur cable further inboard using a couple of large washers, I was able to decrease the throw-per-shift of the dura ace derailleur. It works fine, and I like the clean look of the lever. BTW, I've got a lance-style downtube shifter for the front. -- -------------------------- Andre Charlebois AGC-PC support http://agc-pc.tripod.com BPE, MCSE4.0, CNA, A+ "Qui si parla Campagnolo " wrote in message ... gevans- You could pick up a tiagra shifter for about a $120 at any bike shop on your way home from work. BRBR Or a SET of Campagnolo shifters for the same price. Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302 (303)440-3535 http://www.vecchios.com "Ruote convenzionali costruite eccezionalmente bene" |
#20
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Rick Warner wrote:
Mark Wolfe wrote in message news:ZiN6d.267763$4o.8765@fed1read01... party. Plus I can throw a Triple on it for next years Death Ride. I'm curious as to if anyone has found a cure for the dead brifter. The way I look at it, it has cost me 220 miles over the last week. Not to mention $15 in gas while the bike is down. /rant Not so sure that STI failure is "common". I have 105 and Ultegra STI brifters with tens of thousands of miles on them and not a single failure. Same for my friends. And the ability to change double-triple is not unique to Campy; all Ultregra/105 brifters since about 2001 are capable of either. Now the question is, is your brifter dead or just in need of cleaning? Most times folks think they have a dead STI brifter a good flush with WD-40 seems to cause a resurrection. BTW, why didn't you just throw a DT shifter on it until you came up with a game plan? Simple, easy, no miles lost. And *that*, not a Campy brifter, is how Schwinn did it! - rick Did the WD-40 flush first, then disassembly, cleaned/lubed, no go. I didn't take the ratchet mechanism apart, as that looked like something I wouldn't be able to get back together. I've been itching for the campy levers to begin with. Yeah, I know DT shifters are what the bike probably came with, but being a Waterford Paramount, it probably had campy from the factory. I did update it a bit with an "un-authorized" paint job http://tinyurl.com/44gfl , reset the rear to 130, and removed those top tube cable guides in favor of guides at 7 O'clock. Just checked the mail and my shiftmate has arrived. Neat little part. I also knew about the ultegra/105 ability to shift a triple. Right now I'm running the ultra rare 12-27 cassette on back, but there are some hills that I've struggled on with that. -- Mark Wolfe Lakeside, ca http://www.wolfenet.org gpg fingerprint = 42B6 EFEB 5414 AA18 01B7 64AC EF46 F7E6 82F6 8C71 "The irony is that Bill Gates claims to be making a stable operating system and Linus Torvalds claims to be trying to take over the world." - Drakmere |
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