How does this chain come apart?
11-08-23, 04:46 PM
#1
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How does this chain come apart?
Looking for a master link.......... and all I can find is one pin that looks different - darker color, wider smooth head. All the other pins look to have a square imprint on them.
SO, this is the pin the factory put in on assembly and I don't want to remove it?? or I can push this one out? From which direction?
Or do I push out another pin and then can't ruse it?? Where do I find a repair replacement pin?
This is on a 2011 Trek Wingra that was given to me
CN-HG50 HG NARROW embossed on chain
THANKS!
(I am new here and can't post the photos of the chain)
SO, this is the pin the factory put in on assembly and I don't want to remove it?? or I can push this one out? From which direction?
Or do I push out another pin and then can't ruse it?? Where do I find a repair replacement pin?
This is on a 2011 Trek Wingra that was given to me
CN-HG50 HG NARROW embossed on chain
THANKS!
(I am new here and can't post the photos of the chain)
11-08-23, 04:53 PM
#2
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Shimano CN-HG50 is an 8-speed chain. You use this tool to push that pin out from either direction.
CT-3.2 Chain Tool | Park Tool
Do not reuse the pin; reinstall a new pin:
Shimano Chain Connector Pins - Multi Pack - Cambria Bike
Better yet, install a quick link:
Missing Link 8/7 Speed 2 Pairs Reusable – KMC Chain
Use this tool to install (or to remove) the quick link:
https://www.amazon.com/gp/product/B007E8YO7Q/
CT-3.2 Chain Tool | Park Tool
Do not reuse the pin; reinstall a new pin:
Shimano Chain Connector Pins - Multi Pack - Cambria Bike
Better yet, install a quick link:
Missing Link 8/7 Speed 2 Pairs Reusable – KMC Chain
Use this tool to install (or to remove) the quick link:
https://www.amazon.com/gp/product/B007E8YO7Q/
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11-08-23, 05:06 PM
#4
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I have just installed a Shimano HG70 ( "6,7,8 speed" ) chain and yes the pin with the flat smooth end is the pin the factory provided ( factory part way installed ) for the end user to press all the way through when joining the chain.
The instructions state to NOT remove this pin after installation. And if subsequently needing to break the chain, to do this at another link location, and re-join with the spare pin they provided. So the inference here is do NOT re-use a standard pin already in the chain. ( The spare pin they provide has a lead-in guide, which is snapped off after installation, and the main pin section has two slight raised ridges at either end. )
I don't know if you can get these spare pins separately but I once used some sort of "quick link" on one of these chains. I'm pretty sure people do this all the time to make it easier to break their chains without having to press a pin out.
The instructions state to NOT remove this pin after installation. And if subsequently needing to break the chain, to do this at another link location, and re-join with the spare pin they provided. So the inference here is do NOT re-use a standard pin already in the chain. ( The spare pin they provide has a lead-in guide, which is snapped off after installation, and the main pin section has two slight raised ridges at either end. )
I don't know if you can get these spare pins separately but I once used some sort of "quick link" on one of these chains. I'm pretty sure people do this all the time to make it easier to break their chains without having to press a pin out.
Last edited by redshift1; 11-08-23 at 05:10 PM. Reason: Spelling mistake.
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11-08-23, 06:22 PM
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11-08-23, 06:31 PM
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Unless it uses Shimano's older style quick link.
https://www.amazon.com/SHIMANO-SM-UG.../dp/B0847TTF8Y
https://www.amazon.com/SHIMANO-SM-UG.../dp/B0847TTF8Y
11-08-23, 06:54 PM
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The instructions state to NOT remove this pin after installation. And if subsequently needing to break the chain, to do this at another link location, and re-join with the spare pin they provided. So the inference here is do NOT re-use a standard pin already in the chain. ( The spare pin they provide has a lead-in guide, which is snapped off after installation, and the main pin section has two slight raised ridges at either end. )
11-08-23, 06:57 PM
#8
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I have just installed a Shimano HG70 ( "6,7,8 speed" ) chain and yes the pin with the flat smooth end is the pin the factory provided ( factory part way installed ) for the end user to press all the way through when joining the chain.
The instructions state to NOT remove this pin after installation. And if subsequently needing to break the chain, to do this at another link location, and re-join with the spare pin they provided. So the inference here is do NOT re-use a standard pin already in the chain. ( The spare pin they provide has a lead-in guide, which is snapped off after installation, and the main pin section has two slight raised ridges at either end. )
I don't know if you can get these spare pins separately but I once used some sort of "quick link" on one of these chains. I'm pretty sure people do this all the time to make it easier to break their chains without having to press a pin out.
The instructions state to NOT remove this pin after installation. And if subsequently needing to break the chain, to do this at another link location, and re-join with the spare pin they provided. So the inference here is do NOT re-use a standard pin already in the chain. ( The spare pin they provide has a lead-in guide, which is snapped off after installation, and the main pin section has two slight raised ridges at either end. )
I don't know if you can get these spare pins separately but I once used some sort of "quick link" on one of these chains. I'm pretty sure people do this all the time to make it easier to break their chains without having to press a pin out.
11-08-23, 07:20 PM
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Leave the chain alone unless there's a compelling reason to remove it.
IMO the only compelling reason would be to replace it when worn. That would make the question moot, since whatever new chain you buy will come with its own closure.
IMO the only compelling reason would be to replace it when worn. That would make the question moot, since whatever new chain you buy will come with its own closure.
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
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11-08-23, 08:05 PM
#10
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And double check which exact chain link you remove - make sure it matches the quick-link !
p.s. In case you were asking something different to the above, the quick-link has its own pins as part of it.
Last edited by redshift1; 11-08-23 at 08:21 PM. Reason: Added p.s.
11-08-23, 08:20 PM
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Use this tool to install (or to remove) the quick link:
https://www.amazon.com/gp/product/B007E8YO7Q/
https://www.amazon.com/gp/product/B007E8YO7Q/
11-08-23, 08:38 PM
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If you are going to use a quick-link, find a completely different location in the chain to where the original smooth end joining pin is.
And double check which exact chain link you remove - make sure it matches the quick-link !
p.s. In case you were asking something different to the above, the quick-link has its own pins as part of it.
And double check which exact chain link you remove - make sure it matches the quick-link !
p.s. In case you were asking something different to the above, the quick-link has its own pins as part of it.
11-09-23, 03:03 AM
#13
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That smooth end pin joins two links together ( of course ) and in the process of inserting the pin, I expect it will expand the bores of both links. Because unlike all the other pins in the chain, which are rivetted on their ends to keep them in place, the smooth end joining pin has to rely on slight over-sizing to keep it in place. If you remove this pin, and then re-use either chain link the pin was inserted in, the pin bores will be over-sized and therefore weakened.
Just consider that pin as a permanently installed pin.
Just consider that pin as a permanently installed pin.
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11-09-23, 03:18 AM
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This is unfortunately the way to go, if you want to install the link in a chain that did not have it initially.
After you install it, do not forget to move the location where the link is installed a couple of times in both directions, because the connection will be a little stiff in the beginning.
After you install it, do not forget to move the location where the link is installed a couple of times in both directions, because the connection will be a little stiff in the beginning.
11-09-23, 07:16 AM
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That smooth end pin joins two links together ( of course ) and in the process of inserting the pin, I expect it will expand the bores of both links. Because unlike all the other pins in the chain, which are rivetted on their ends to keep them in place, the smooth end joining pin has to rely on slight over-sizing to keep it in place. If you remove this pin, and then re-use either chain link the pin was inserted in, the pin bores will be over-sized and therefore weakened.
Just consider that pin as a permanently installed pin.
Just consider that pin as a permanently installed pin.
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11-09-23, 07:36 PM
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11-10-23, 03:45 AM
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found the above quick link on a junk chain I made my chain whip out of - will this S.R.A.M 8SPD A7 work on my 8 speed chain?
I am waiting on my chain breaking tool
I am waiting on my chain breaking tool
11-10-23, 08:38 AM
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A wonderful discussion detailing the very reasons the only thing that I do with Shimano chains is toss them.
In the mid-80's I went to Sedis and now I'm all KMC... With absolutely no regrets.
YMMV of course. Use whatever makes you happy - that's what I do
In the mid-80's I went to Sedis and now I'm all KMC... With absolutely no regrets.
YMMV of course. Use whatever makes you happy - that's what I do
11-10-23, 09:28 AM
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The instructions state to NOT remove this pin after installation. And if subsequently needing to break the chain, to do this at another link location, and re-join with the spare pin they provided. So the inference here is do NOT re-use a standard pin already in the chain. ( The spare pin they provide has a lead-in guide, which is snapped off after installation, and the main pin section has two slight raised ridges at either end. )
11-10-23, 09:34 AM
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11-12-23, 03:31 PM
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SHIMANO 8 Speed Bicycle Chain Connecting Pin
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11-12-23, 04:04 PM
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