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#1
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Touchy front shifting on Ultegra triple
I just set up a bike with Ultegra triple. All new Shimano drivetrain
parts and shifters and a Specialties Alize crank with 50-40-30 rings. Rear shifting is perfect, but front shifting is very touchy. It feels very "notchy", grinds a bit on upshifts, and downshifts go "clunk" and I have to be very careful and "hold my mouth just right " or it will shift straight to the inner ring when I downshift from the outer ring. This is the best I've been able to get it after two days of trying everything I can think of. I've set up several front derailleurs before and never had this kind of trouble, but I'm no pro. I took it to my LBS and the guy played with it and couldn't improve on my set-up. Then he told me that Specialties cranks are not compatible with Shimano. I didn't buy that. I wanted to take it to another shop, but they're closed for the next several days to digest their turkey. I double checked that the fd is indeed the triple model. Is Ultegra triple front shifting always poor? I doubt it, but I sure can't figure it out. I set up Ultegra double on my other road bike and it's flawless. Any ideas? Thanks very much. |
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#2
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Touchy front shifting on Ultegra triple
Dave: How old is the Specialized crank? If it doesn't have the various
ramps & pins built into it, shifting might be problematic at best. STI shifting demands a lot more from chainring & chain performance than friction shifting, and the fact that your crank has non-standard (for STI) sizes (30/40/50 instead of 30/42/52) implies that it might be of the older, pre-STI style. If it's a modern Specialized road crank, it should be relatively compatible; nobody would make a new crankset that didn't work well with STI shifting! --Mike-- Chain Reaction Bicycles http://www.ChainReactionBicycles.com "Dave" wrote in message ... I just set up a bike with Ultegra triple. All new Shimano drivetrain parts and shifters and a Specialties Alize crank with 50-40-30 rings. Rear shifting is perfect, but front shifting is very touchy. It feels very "notchy", grinds a bit on upshifts, and downshifts go "clunk" and I have to be very careful and "hold my mouth just right " or it will shift straight to the inner ring when I downshift from the outer ring. This is the best I've been able to get it after two days of trying everything I can think of. I've set up several front derailleurs before and never had this kind of trouble, but I'm no pro. I took it to my LBS and the guy played with it and couldn't improve on my set-up. Then he told me that Specialties cranks are not compatible with Shimano. I didn't buy that. I wanted to take it to another shop, but they're closed for the next several days to digest their turkey. I double checked that the fd is indeed the triple model. Is Ultegra triple front shifting always poor? I doubt it, but I sure can't figure it out. I set up Ultegra double on my other road bike and it's flawless. Any ideas? Thanks very much. |
#3
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Touchy front shifting on Ultegra triple
sallydog- I just set up a bike with Ultegra triple. All new Shimano
drivetrain parts and shifters and a Specialties Alize crank with 50-40-30 rings. Rear shifting is perfect, but front shifting is very touchy. It feels very "notchy", grinds a bit on upshifts, and downshifts go "clunk" and I have to be very careful BRBR I took it to my LBS and the guy played with it and couldn't improve on my set-up. Then he told me that Specialties cranks are not compatible with Shimano. BRBR It's compatible but ya got use a wee bit of cycling finesse when shifting. Just ease up a bit of pedal pressure when shifting, both front AND back, and you will see how good it is. As if in a bike stand, type of pressure. using a shimano triple crank it probably would be better but using the crank you havem it isn't 'bad'.. Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302 (303)440-3535 http://www.vecchios.com "Ruote convenzionali costruite eccezionalmente bene" |
#4
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Touchy front shifting on Ultegra triple
On Sat, 29 Nov 2003 06:15:08 GMT, "Mike Jacoubowsky"
wrote: Dave: How old is the Specialized crank? If it doesn't have the various ramps & pins built into it, shifting might be problematic at best. STI shifting demands a lot more from chainring & chain performance than friction shifting, and the fact that your crank has non-standard (for STI) sizes (30/40/50 instead of 30/42/52) implies that it might be of the older, pre-STI style. If it's a modern Specialized road crank, it should be relatively compatible; nobody would make a new crankset that didn't work well with STI shifting! --Mike-- Chain Reaction Bicycles http://www.ChainReactionBicycles.com Thanks Mike. Sorry I wasn't more clear. The crank is a new *Specialties TA Alize* I should have put the "TA" in my original post to avoid confusion. 'Course, I think there should be more TA in everything, but that's another story. Your comment that any crank sold today should be compatible with STI is why I didn't buy the LBS guy's diagnosis. Peter wrote that there might be some compatibility problems so I'll continue under his post. "Dave" wrote in message .. . I just set up a bike with Ultegra triple. All new Shimano drivetrain parts and shifters and a Specialties Alize crank with 50-40-30 rings. Rear shifting is perfect, but front shifting is very touchy. It feels very "notchy", grinds a bit on upshifts, and downshifts go "clunk" and I have to be very careful and "hold my mouth just right " or it will shift straight to the inner ring when I downshift from the outer ring. This is the best I've been able to get it after two days of trying everything I can think of. I've set up several front derailleurs before and never had this kind of trouble, but I'm no pro. I took it to my LBS and the guy played with it and couldn't improve on my set-up. Then he told me that Specialties cranks are not compatible with Shimano. I didn't buy that. I wanted to take it to another shop, but they're closed for the next several days to digest their turkey. I double checked that the fd is indeed the triple model. Is Ultegra triple front shifting always poor? I doubt it, but I sure can't figure it out. I set up Ultegra double on my other road bike and it's flawless. Any ideas? Thanks very much. |
#6
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Touchy front shifting on Ultegra triple
Sorry I wasn't more clear. The crank is a new *Specialties TA Alize*
I should have put the "TA" in my original post to avoid confusion. 'Course, I think there should be more TA in everything, but that's another story. Your comment that any crank sold today should be compatible with STI is why I didn't buy the LBS guy's diagnosis. Peter wrote that there might be some compatibility problems so I'll continue under his post. Sorry I misunderstood; I was thinking "Specialized Alleze" with creative spelling. The TA cranks are better than those of yesteryear, but my experience has been that they don't shift as well as the Shimano (or most other Japanese) cranksets. A Campagnolo Ergo system would have no difficulty, because *you* control how fast & far the derailleur moves, but the Shimano is definitely a bit picky up front. It's also possible that your crankset is too far out from the frame (too long a bottom-bracket spindle). --Mike-- Chain Reaction Bicycles www.ChainReaction.com "Dave" wrote in message ... On Sat, 29 Nov 2003 06:15:08 GMT, "Mike Jacoubowsky" wrote: Dave: How old is the Specialized crank? If it doesn't have the various ramps & pins built into it, shifting might be problematic at best. STI shifting demands a lot more from chainring & chain performance than friction shifting, and the fact that your crank has non-standard (for STI) sizes (30/40/50 instead of 30/42/52) implies that it might be of the older, pre-STI style. If it's a modern Specialized road crank, it should be relatively compatible; nobody would make a new crankset that didn't work well with STI shifting! --Mike-- Chain Reaction Bicycles http://www.ChainReactionBicycles.com Thanks Mike. Sorry I wasn't more clear. The crank is a new *Specialties TA Alize* I should have put the "TA" in my original post to avoid confusion. 'Course, I think there should be more TA in everything, but that's another story. Your comment that any crank sold today should be compatible with STI is why I didn't buy the LBS guy's diagnosis. Peter wrote that there might be some compatibility problems so I'll continue under his post. "Dave" wrote in message .. . I just set up a bike with Ultegra triple. All new Shimano drivetrain parts and shifters and a Specialties Alize crank with 50-40-30 rings. Rear shifting is perfect, but front shifting is very touchy. It feels very "notchy", grinds a bit on upshifts, and downshifts go "clunk" and I have to be very careful and "hold my mouth just right " or it will shift straight to the inner ring when I downshift from the outer ring. This is the best I've been able to get it after two days of trying everything I can think of. I've set up several front derailleurs before and never had this kind of trouble, but I'm no pro. I took it to my LBS and the guy played with it and couldn't improve on my set-up. Then he told me that Specialties cranks are not compatible with Shimano. I didn't buy that. I wanted to take it to another shop, but they're closed for the next several days to digest their turkey. I double checked that the fd is indeed the triple model. Is Ultegra triple front shifting always poor? I doubt it, but I sure can't figure it out. I set up Ultegra double on my other road bike and it's flawless. Any ideas? Thanks very much. |
#7
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Touchy front shifting on Ultegra triple
"Mike Jacoubowsky/Chain Reaction Bicycles" wrote
in message . com... It's also possible that your crankset is too far out from the frame (too long a bottom-bracket spindle). If so, how would you deal with that? A spacer? Different spindle? I had a similar situation when I switched from Ultegra rings to TA. Thanks, Mish |
#8
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Touchy front shifting on Ultegra triple
It's also possible that your crankset is too far out from the frame (too
long a bottom-bracket spindle). If so, how would you deal with that? A spacer? Different spindle? I had a similar situation when I switched from Ultegra rings to TA. Sounds like his problem is that the crank is out too far, so a spacer isn't going to be of any help; rather, he needs a shorter spindle (*if* that's the cause of his problems). --Mike-- Chain Reaction Bicycles www.ChainReaction.com "Gary Mishler" wrote in message news:Cz7yb.358420$Fm2.358047@attbi_s04... "Mike Jacoubowsky/Chain Reaction Bicycles" wrote in message . com... It's also possible that your crankset is too far out from the frame (too long a bottom-bracket spindle). If so, how would you deal with that? A spacer? Different spindle? I had a similar situation when I switched from Ultegra rings to TA. Thanks, Mish |
#9
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Touchy front shifting on Ultegra triple
On Sat, 29 Nov 2003 18:53:14 GMT, "Mike Jacoubowsky/Chain Reaction
Bicycles" wrote: Sorry I wasn't more clear. The crank is a new *Specialties TA Alize* I should have put the "TA" in my original post to avoid confusion. 'Course, I think there should be more TA in everything, but that's another story. Your comment that any crank sold today should be compatible with STI is why I didn't buy the LBS guy's diagnosis. Peter wrote that there might be some compatibility problems so I'll continue under his post. Sorry I misunderstood; I was thinking "Specialized Alleze" with creative spelling. The TA cranks are better than those of yesteryear, but my experience has been that they don't shift as well as the Shimano (or most other Japanese) cranksets. A Campagnolo Ergo system would have no difficulty, because *you* control how fast & far the derailleur moves, but the Shimano is definitely a bit picky up front. It's also possible that your crankset is too far out from the frame (too long a bottom-bracket spindle). Well, Alleze or Alize, either way you seem to have been right. I tried a new Ultegra triple BB and crankset and it all works perfectly. The guy at the good LBS I took it to agreed exactly with you. He said the chainline was out of whack and that the TA cranks and rings just don't match up as well as the Shimano parts. Thanks! --Mike-- Chain Reaction Bicycles www.ChainReaction.com "Dave" wrote in message .. . On Sat, 29 Nov 2003 06:15:08 GMT, "Mike Jacoubowsky" wrote: Dave: How old is the Specialized crank? If it doesn't have the various ramps & pins built into it, shifting might be problematic at best. STI shifting demands a lot more from chainring & chain performance than friction shifting, and the fact that your crank has non-standard (for STI) sizes (30/40/50 instead of 30/42/52) implies that it might be of the older, pre-STI style. If it's a modern Specialized road crank, it should be relatively compatible; nobody would make a new crankset that didn't work well with STI shifting! --Mike-- Chain Reaction Bicycles http://www.ChainReactionBicycles.com Thanks Mike. Sorry I wasn't more clear. The crank is a new *Specialties TA Alize* I should have put the "TA" in my original post to avoid confusion. 'Course, I think there should be more TA in everything, but that's another story. Your comment that any crank sold today should be compatible with STI is why I didn't buy the LBS guy's diagnosis. Peter wrote that there might be some compatibility problems so I'll continue under his post. "Dave" wrote in message .. . I just set up a bike with Ultegra triple. All new Shimano drivetrain parts and shifters and a Specialties Alize crank with 50-40-30 rings. Rear shifting is perfect, but front shifting is very touchy. It feels very "notchy", grinds a bit on upshifts, and downshifts go "clunk" and I have to be very careful and "hold my mouth just right " or it will shift straight to the inner ring when I downshift from the outer ring. This is the best I've been able to get it after two days of trying everything I can think of. I've set up several front derailleurs before and never had this kind of trouble, but I'm no pro. I took it to my LBS and the guy played with it and couldn't improve on my set-up. Then he told me that Specialties cranks are not compatible with Shimano. I didn't buy that. I wanted to take it to another shop, but they're closed for the next several days to digest their turkey. I double checked that the fd is indeed the triple model. Is Ultegra triple front shifting always poor? I doubt it, but I sure can't figure it out. I set up Ultegra double on my other road bike and it's flawless. Any ideas? Thanks very much. |
#10
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Touchy front shifting on Ultegra triple
sally- The biggest problem is in downshifting from the big ring to the
middle. The shift lever seems to go past the middle "stop" and derailleur drops directly to the inner ring. BRBR May be that the lever is 'ill'. Flush with STI repair kit-WD-40- Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302 (303)440-3535 http://www.vecchios.com "Ruote convenzionali costruite eccezionalmente bene" |
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