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Electronic shifters question

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Electronic shifters question

Old 09-16-23, 09:41 AM
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Originally Posted by CoogansBluff
Only thing unusual that I know about is that I sweat a lot, and my sweat apparently is a pretty acidic. I've had two replace two handle bars because they corroded. Now have a carbon handlebar. So could be that sweat gets into the shifters and cables. Maybe I don't do enough to prevent it. And it hasn't been like this from the start as far as needing frequent derailleur adjustments, although probably always a little above average. This calendar year has been more frequent.
Have you tried hosing down your bike after riding?
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Old 09-16-23, 09:41 AM
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Originally Posted by CoogansBluff
Only thing unusual that I know about is that I sweat a lot, and my sweat apparently is a pretty acidic. I've had two replace two handle bars because they corroded. Now have a carbon handlebar. So could be that sweat gets into the shifters and cables. Maybe I don't do enough to prevent it. And it hasn't been like this from the start as far as needing frequent derailleur adjustments, although probably always a little above average. This calendar year has been more frequent.
I haven’t melted through any handlebars yet, but my sweat melted through the palm rests on an aluminum Apple Powerbook back in college, does that count?

I know it’s not considered best practice these days, but maybe putting a dab of grease on the cables where they come out of the housing could prevent some of the sweat from dripping in and pooling in there.
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Old 09-16-23, 09:44 AM
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Originally Posted by chaadster
Dude, that’s crazy…every bit of it. No bike should need that much attention or replacement parts, nor not stay in adjustment like that.

I have no idea what could cause such an affair, but what kind of frame and drivetrain components are we talking about here?

Absent more details, all I can think to say is to sell the darned thing because it must be cursed, but I don’t believe in that kind of stuff myself. If you’re having real problems, there are real causes.
Agree w/ the cursed part. That is, I don't believe that it's cursed. I think it's (1) fact that I don't know how to fix it myself and (2) the mechanic's track record of fixing it is poor. Then got a new mechanic, and his adjustment didn't hold. What it's currently doing isn't terrible. Just 2-3 skips across 30 miles yesterday. Will ride it again today.

This is the bike: https://www.specialized.com/us/en/ro...=239328-159163

They're replacing parts with the same it originally had.
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Old 09-16-23, 09:45 AM
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Originally Posted by CoogansBluff
I've replaced the cogs twice for sure, possibly three times, but let's just say twice. And I wonder if I needed to do that, or if the mechanic just said, "Let's try that and see if it fixes it.''
See, I’m cool if the shop says “see if this fixes it,” but if it didn’t, they should have taken the bike back and continued to tinker with it. Maybe bad derailleur hanger, or a worn out derailleur at this point?
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Old 09-16-23, 09:46 AM
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Originally Posted by tomato coupe
Have you tried hosing down your bike after riding?
Have not done that. Would that entail spraying under the hoods at the shifters? The chain? Would that then require more cleaning and lubing of those parts?
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Old 09-16-23, 09:48 AM
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Originally Posted by aliasfox
See, I’m cool if the shop says “see if this fixes it,” but if it didn’t, they should have taken the bike back and continued to tinker with it. Maybe bad derailleur hanger, or a worn out derailleur at this point?
Derailleur is not that old. It's been replaced. Can't remember when, maybe 2 years ago?

They frequently have taken it back and tinkered. Most recent time it stayed in their shop a week without them calling me. I called. "We've been busy.'' Five days later, I picked it up unfixed and haven't seen them again. When I buy a new bike, I might have to go 'Pretty Woman' on them and go back and ask if they're paid on commission.
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Old 09-16-23, 09:49 AM
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Originally Posted by CoogansBluff
Have not done that. Would that entail spraying under the hoods at the shifters? The chain? Would that then require more cleaning and lubing of those parts?
Hose it down wherever you sweat on it. It might require more frequent lubing, but it's better than having it stew in a corrosive bath.
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Old 09-16-23, 09:51 AM
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Originally Posted by deacon mark
What components does it have?
This is original: https://www.specialized.com/us/en/ro...=239328-159163

Replacement parts same as original as far as I know.
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Old 09-16-23, 09:59 AM
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Originally Posted by CoogansBluff
Derailleur is not that old. It's been replaced. Can't remember when, maybe 2 years ago?

They frequently have taken it back and tinkered. Most recent time it stayed in their shop a week without them calling me. I called. "We've been busy.'' Five days later, I picked it up unfixed and haven't seen them again. When I buy a new bike, I might have to go 'Pretty Woman' on them and go back and ask if they're paid on commission.
Ah, so are you saying you walked in looking like a Fred before, and are now going to walk in looking like Jonas Vingegaard? I’d love to do that too… but my paunch gets in my way lol.

How many miles on the bike?

I get the feeling that it must be something small, like a missed cassette spacer that nobody noticed that’s giving you grief.
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Old 09-16-23, 10:18 AM
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Originally Posted by CoogansBluff
Only thing unusual that I know about is that I sweat a lot, and my sweat apparently is a pretty acidic. I've had to replace two handle bars because they corroded. Now have a carbon handlebar. So could be that sweat gets into the shifters and cables. Maybe I don't do enough to prevent it. And it hasn't been like this from the start as far as needing frequent derailleur adjustments, although probably always a little above average. This calendar year has been more frequent.
Ah, yes that might explain some of it, but a bike that can’t hold shifting adjustment through 10 rides has something else going on, and changing cassettes, a chainring, and stuff that doesn’t have any positive impact on shifting quality speaks to something else again.

Anyway, I can’t possibly diagnose the problem at this distance, but the conditions sure seem highly unusual even accounting for the aggressive perspiration.
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