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Breaking chain link on some random place

Old 04-28-22, 08:23 PM
  #26  
cxwrench
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Originally Posted by Iride01
While everyone says it's terrible to re-use pins on a 11 speed chain, I did and I never had any issues. I got to ride my bike on a day when the bike shops weren't open so I could get another quick link or break-away pin.

Even if I did have an issue, what's it going to do? I've walked my bike home or called for a ride for other issues. Why not for my chain falling off?

Though if you can avoid doing it, I would. It is a tiny and tedious thing to get lined up correctly and not do any damage to the chain. But once done, why not just find out if the nay-sayers were correct. In my case they were wrong. I got four years on that chain with that re-used pin.
You've probably seen this before: YMMV...as in nuts>top tube if you're lucky. Use your imagination.
Originally Posted by Kai Winters
LOL I've been a wrench since the mid '80's. I've used "fixed" pins on 10-11 speed chains when I had to without a single problem. You do have to know what your doing and use the correct tools.
Gotta love "interweb experts"...meh...I really don't care what anyone does. I'm not riding the bike or working on it...
Proof you can do something for over 30 years and still be totally clueless.
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Old 04-28-22, 09:58 PM
  #27  
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Originally Posted by smd4
Cyc, what brand chain breaker is that? Looks awesome.
Topeak Droid, although the tool was renamed the “Chain Bot” after it initially came out because of Lucasfilms.
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Old 04-29-22, 08:02 AM
  #28  
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Originally Posted by dsbrantjr
It might break when you are standing up pedaling hard, putting some sensitive parts of your body onto the top tube, hard. Or you could crash. Or nothing. Wanna bet which? Feeling lucky?
Originally Posted by cxwrench
You've probably seen this before: YMMV...as in nuts>top tube if you're lucky. Use your imagination.

Proof you can do something for over 30 years and still be totally clueless.
So how many times have you broken a chain and racked your nuts on the top tube? I think I broke a chain while riding once in my lifetime. I didn't rack my nuts and that was on an old style oversize for me bike where the top tube would be very close.

What y'all are doing is just imagining and fearing the worst. However I don't consider racking my nuts life threatening enough to even worry about. If one did, then where are all the cautions to your kids about throwing baseballs, playing tennis and many other things where such actually happens?

And though I and other kids have accidentally racked our nuts... You know what? We go over it!
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Old 04-29-22, 08:27 AM
  #29  
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Originally Posted by Iride01
So how many times have you broken a chain and racked your nuts on the top tube?
Once would be enough for me. Thanks.
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Old 04-29-22, 10:28 AM
  #30  
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Aside from emergency repair, I can't see a good reason to do stuff the wrong way.
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Old 05-01-22, 01:06 PM
  #31  
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Thanks to everyone for your advice. As I stated above, I will replace it with a master link.

This is the bike I bought and was not serviced as it should so it was super dirty. I did something wrong but when I realized that the side plate is destroyed I started googling.
Luckily, master links are cheap fix so I will use them.
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Old 05-01-22, 02:43 PM
  #32  
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Originally Posted by xperiap
Thanks to everyone for your advice. As I stated above, I will replace it with a master link.

This is the bike I bought and was not serviced as it should so it was super dirty. I did something wrong but when I realized that the side plate is destroyed I started googling.
Luckily, master links are cheap fix so I will use them.
I don't remember if you ever said you checked the chain for wear. If it's showing any "stretch" at all, you might just spring for a new chain. Then you'll get the quick link as part of the new chain. At least for most new chains you do.
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Old 05-01-22, 07:00 PM
  #33  
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Originally Posted by andrewclaus
I agree, the 11 speed chain is scrap now. I tried to repair the first peened chain I ever encountered, on a friend's bike. We were 50 miles away from a shop when it failed, and it failed twice more before we got there.
Not "scrap." Just put a second quick-link in to replace the compromised link.
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Old 05-01-22, 11:16 PM
  #34  
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Originally Posted by Iride01
I don't remember if you ever said you checked the chain for wear. If it's showing any "stretch" at all, you might just spring for a new chain. Then you'll get the quick link as part of the new chain. At least for most new chains you do.
Yes, I checked it and it's less than 0.5 so I will not change it yet.
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Old 05-02-22, 05:05 AM
  #35  
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The internet is like being in a room with two people. One is the smartest person in world and the other is an idiot who has no idea what they're talking about; using the idiot's answer could possibly get you injured or killed. The tricky part is figuring out which person you're talking to because idiots are supremely confident when providing answers.
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Old 05-02-22, 09:37 AM
  #36  
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Reusing a pin in an 8+ speed chain has an uncertain prognosis.
I’ve never set out to do it ”intentionally”. But I’ve done it several times as a trail/roadside fix. You don’t have to be far from home before attempting it is better than walking. While I carry quick links for my chain size, I don’t carry the full set. And those roadside fixes can go either way, they can fail the next mile, or last the rest of the natural life of the chain. Usually something inbetween.
I don’t know where that ”pins are peened” comes from. I do know that narrower chains use harder side plates, and reusing pins IME often result in flakes breaking off around the pin hole.
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Old 05-02-22, 10:01 AM
  #37  
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Originally Posted by dabac
I don’t know where that ”pins are peened” comes from. I do know that narrower chains use harder side plates, and reusing pins IME often result in flakes breaking off around the pin hole.
It comes from the pins being peened.That's why they make that snapping noise when you push one out and you end up with the little rings of steel on the pin of your chain tool.
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Old 05-02-22, 04:00 PM
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Originally Posted by dabac
I don’t know where that ”pins are peened” comes from. I do know that narrower chains use harder side plates, and reusing pins IME often result in flakes breaking off around the pin hole.
It comes from the manufacturer. From KMC

For high end chain, pins are riveted with capping to sustain more sideways force during gear change. For this type of chain, pin can not be reused. To reconnecting chain, special pin with guide or special quick connecting link designated by chain makers has to be used.

For a regular non-capping riveted chain where reusing pin is not prohibited, after applying the lubricant, using the chain tool to reconnect the chain, bent the chain sideways back and forth for few times to make sure that there is no tight link at this connecting point.
”Capping” is another way to say “peening” as is “mushrooming”.
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Old 05-02-22, 04:02 PM
  #39  
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Originally Posted by cxwrench
You've probably seen this before: YMMV...as in nuts>top tube if you're lucky. Use your imagination.

Proof you can do something for over 30 years and still be totally clueless.
No different than "I've smoked crack for 30 years and nothing bad has ever happened, so crack must be good for you".
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Old 05-04-22, 03:40 AM
  #40  
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Originally Posted by cxwrench
It comes from the pins being peened.
I can read the word. But I don't se the evidence on the chains that I use.
But I stop at 10-speed, usually KMC chains.
Originally Posted by cxwrench
That's why ...you end up with the little rings of steel on the pin of your chain tool.
I don't get or have any little rings of steel on the pin of my chain tool. I checked before posting.
Originally Posted by cxwrench
That's why they make that snapping noise when you push one out .
I do often get a snapping noise. And I see flakes breaking off from around the hole in the side plate. Never noticed rings breaking off from the pins though.
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Old 05-04-22, 03:43 AM
  #41  
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Originally Posted by cyccommute
It comes from the manufacturer. From KMC

”Capping” is another way to say “peening” as is “mushrooming”.
Ah. I'd call that "peened OVER". Peening alone can have a wider meaning and other uses.
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Old 05-04-22, 08:46 AM
  #42  
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Originally Posted by dabac
Ah. I'd call that "peened OVER". Peening alone can have a wider meaning and other uses.
“Peening” is the act of cold working…or even warm working…the metal. There are lots of places where peening is used to slight (or even severely) expand the end of a metal rod. The “over” part really isn’t needed to describe peening. The act of working the metal is peening, whether it’s shot, roto, needle, or hammer peening.

Originally Posted by dabac
I can read the word. But I don't se the evidence on the chains that I use.
But I stop at 10-speed, usually KMC chains.
Just about anything past 9 speed has peened pins. Some 8 speed chains have it too.

I don't get or have any little rings of steel on the pin of my chain tool. I checked before posting.

I do often get a snapping noise. And I see flakes breaking off from around the hole in the side plate. Never noticed rings breaking off from the pins though.
You don’t always get rings around the chain tool pin. But that “snap” and flakes are evidence of the peen breaking. The peen may even deform the hole in the side plate which is another reason not to reuse the pin
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Old 05-04-22, 11:35 AM
  #43  
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Originally Posted by smd4
I'm actually surprised he was able to insert a pin after having removed it. Deformed side plates, anyone?
I did it all the time with 8 speed because I was used to doing it on 6 and 7 speed and didn't know technology had changed. I never had a problem, but then again I weighed all of 125 lb back then. I'd rather be more safe now that I have grown up and out.
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