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Need help ID'ing part

Old 04-23-23, 09:38 PM
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Need help ID'ing part

I spotted this plastic cover(?) on the floor and can't figure out what it is. I've worked on 3-4 bikes recently and haven't been able to ID where it might belong. The bikes have all been vintage MTBs if that helps. Any suggestions to help me hone in would be much appreciated.



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Old 04-23-23, 10:17 PM
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For situations like this, it's a great help if you include a coin in the photo, to establish the size.

Lacking any sense of the size, my crapshoot guess I a that it might something like a an RD upper body cover.

Post a new photo, with a coin, or some dimensions and you'll likely get a better answer
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Old 04-24-23, 09:48 AM
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If you are sure it came from your bikes then a pic of the bikes would be helpful too. That way we could get an idea of what components you have that it might be from. But it doesn't look like anything I've seen on typical road bikes with shimano components.

Do you perhaps have some Shimano fishing reels or equipment it might be from? Though it does look more likely to be a bicycle component cover for something.

Though I'm sure someone here will ID it and the rest of us will have a "a-ha" moment.

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Old 04-24-23, 10:10 AM
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Plastic cover for the rear derailleur?
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Old 04-24-23, 12:35 PM
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it looks like a cover for a canti brake cable stirrup. They are not needed and love to fall off. And the retaining tabs have broken so it will not be usable again. Toss it.
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Old 04-24-23, 02:12 PM
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Originally Posted by FBinNY
For situations like this, it's a great help if you include a coin in the photo, to establish the size.

Lacking any sense of the size, my crapshoot guess I a that it might something like a an RD upper body cover.

Post a new photo, with a coin, or some dimensions and you'll likely get a better answer
I added a pic next to a penny.

Originally Posted by maddog34
it looks like a cover for a canti brake cable stirrup. They are not needed and love to fall off. And the retaining tabs have broken so it will not be usable again. Toss it.
Thanks! That was my guess too, though I can't see where it might have come from. All the recent bikes had cantis, incl 2 with chainstay U-brakes. I'll look again.
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Old 04-24-23, 04:36 PM
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Originally Posted by SDHawk





I added a pic next to a penny.



Thanks! That was my guess too, though I can't see where it might have come from. All the recent bikes had cantis, incl 2 with chainstay U-brakes. I'll look again.
here's a diagram.. "Cable Carrier", AKA: Yoke or Stirrup. https://i.pinimg.com/originals/cc/bc...83710bd64f.jpg
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Old 04-24-23, 07:35 PM
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If all the bikes still worked it's an unnecessary part.
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Old 04-24-23, 10:08 PM
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Originally Posted by maddog34
it looks like a cover for a canti brake cable stirrup. They are not needed and love to fall off. And the retaining tabs have broken so it will not be usable again. Toss it.
Yup, it was the stirrup cover for a rear chainstay brake. It stuck back on pretty snug so I'll see if it stays. Thanks.
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