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Is this a bike part?

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Old 01-21-19, 08:36 PM
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Is this a bike part?

So I'm teaching myself how to install new brake and shifter cables. And I may have taken a peak inside the shifters at some point to better understand how they work. They're Shimano 105/5800s.

Unfortunately, the inset/smaller paddle on the left shifter is no longer consistently engaging, and I found this tiny piece sitting on the floor. (brake ferrule shown for size comparison.) Does it belong inside the shifter? If not, does it belong to some other part of the bike?


Thx
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Old 01-21-19, 09:54 PM
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https://si.shimano.com/pdfs/ev/EV-ST-5800-3711.pdf

https://si.shimano.com/#/en/search/Component?name=Shift%2FBrake%20Lever&type=ROAD
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Old 01-21-19, 10:32 PM
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Looks like a shelf pin to me- to fit a 5mm hole.
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Old 01-22-19, 06:16 AM
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This ^^^^^^^
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Old 01-22-19, 06:51 AM
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That's the A/B adjustment pin guide for the front derailleur. Without it your FD won't function properly.
Look it up in the manual, available online: https://si.shimano.com/pdfs/dm/DM-FD0002-05-ENG.pdf
See
page 10-11
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Old 01-22-19, 07:54 AM
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Originally Posted by rccardr
That's the A/B adjustment pin guide for the front derailleur. Without it your FD won't function properly.
Look it up in the manual, available online: https://si.shimano.com/pdfs/dm/DM-FD0002-05-ENG.pdf
See
page 10-11
The link doesn't work, but this is the correct answer. The part is made to be flipped 180 degrees to change the cable routing from the bottom depending on the angle of departure. There is a special tool to indicate which way around it goes for your specific application, or you can do it by trial and error.You have a 50/50 shot at getting it right the first time.
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Old 01-22-19, 05:49 PM
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Well that's odd. I haven't done any work on either of my bikes' front derailleurs other than removing the cables. I found a link that works, so I'll check it out, as I'm not familiar with this piece at all. Thanks, guys!
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Old 01-22-19, 06:43 PM
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Originally Posted by Dan Burkhart
The link doesn't work, but this is the correct answer. The part is made to be flipped 180 degrees to change the cable routing from the bottom depending on the angle of departure. There is a special tool to indicate which way around it goes for your specific application, or you can do it by trial and error.You have a 50/50 shot at getting it right the first time.
remove the word SEE from the link when you paste it
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