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Is this correct?

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Old 02-04-23, 02:11 PM
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polymorphself 
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Is this correct?

Setting up some cantis and didn’t keep track of what this spring was for. This makes the most sense to me but I don’t recall using a spring here in previous setups.


Last edited by polymorphself; 02-04-23 at 02:44 PM.
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Old 02-04-23, 02:49 PM
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Gray piece does not make sense there actually, and I have no idea where that came from now either
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Old 02-04-23, 02:51 PM
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Rear derailleur! I'm an idiot. Saga over. Case closed. Thanks for reading.
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Old 02-04-23, 04:07 PM
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I knew someone will solve it (I guessed DT cable stop... swore I saw it on one of my bikes)
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Old 02-04-23, 08:37 PM
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polymorphself 
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Originally Posted by Lattz
I knew someone will solve it (I guessed DT cable stop... swore I saw it on one of my bikes)
Its clearly not even a barrel adjuster so I'm not sure where I was going with that.
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Old 02-05-23, 03:16 AM
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Originally Posted by polymorphself
Rear derailleur!
I was recently fiddling with one of these with one hand in a mounted Shimano 105 rd that wasn't cabled up, kind of in the dark, and the spring went boioioioioiing across the room, and I thought, "what have I done!?" Then about ten seconds later, I stepped on it with my barefoot, and said, "praise Jesus!"
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Old 02-05-23, 11:04 AM
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Originally Posted by SurferRosa
I was recently fiddling with one of these with one hand in a mounted Shimano 105 rd that wasn't cabled up, kind of in the dark, and the spring went boioioioioiing across the room, and I thought, "what have I done!?" Then about ten seconds later, I stepped on it with my barefoot, and said, "praise Jesus!"
I have a 1965 Fender Jazz Bass- One day I noticed that one of the little saddle adjustment screws was missing- no idea when/where it happened- and it's a tiny little screw. The thought of putting a shiny new screw on that bass chafed me, and the thought of the expense of finding an old screw chafed me. I'd been thinking about replacing the bridge anyway- so I replaced the bridge. I had quit the band I was in- and then a year or so later they wanted me back, so I started playing with them again. One day we're sitting on the floor in the basement rehearsal studio, and I'm mindlessly playing with the carpet strands and I find this little metal piece- and I almost just flung it across the room- just because... I noticed it was threaded and had a single slot and HOLY **** IT'S THE ADJUSTMENT SCREW FOR MY JAZZ BASS!!!
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Old 02-05-23, 11:14 PM
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Originally Posted by polymorphself
Its clearly not even a barrel adjuster so I'm not sure where I was going with that.
No, it’s a barrel adjuster for either in the frame, the rear derailer, or a shifter. The spring keeps tension on the barrel so that it does vibrate. The picture below shows the frame mounted version.

93980011 by Stuart Black, on Flickr

Here’s the adjuster close up for an XT mountain shifter. The spring (red arrow) goes over the threaded barrel (green arrow) and then goes into the plastic knurled nut (yellow arrow).
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