Slightly weird chain question

[defblade]

I found this on the garage floor, between by commuter bike and my permanently-mounted Zwift bike:



Obviously I knew immediately it's a broken chain link, close inspection showed the "narrow" writing on it... and both my Zwift bike and the commuter have chains with the same on them.

But I simply cannot find anything wrong with either of them! I've checked the other 2 bikes in there as well, even though their chains are different.



Is there any likely way I could possibly have missed where this broken piece has come from after several close looks at both sides of each chain?

Or have I perhaps picked up someone else's failure on a tyre and it's waited until I got home to fall off, just to make me paranoid??

[lufbramatt]

Think that's part of a quicklink chain connector?

So either one of your chains is about to snap as it's only got half a quicklink on or it's from an old chain you've replaced?

[defblade]

lufbramatt said:

Think that's part of a quicklink chain connector?

So either one of your chains is about to snap as it's only got half a quicklink on or it's from an old chain you've replaced?

All my chains have all their quicklinks... and I don't remember ever snapping one... and I throw the chains away once I've checked the length against the new one.

[gl20]

Is it possible you bought a spare quick link or there was an extra one that came with a replacement chain that ended up on the floor?

[hidetheelephants]

defblade said:

Or have I perhaps picked up someone else's failure on a tyre and it's waited until I got home to fall off, just to make me paranoid??

You've eiminated the obvious and you're left with what probably happened; it's stuck to a tyre or to the sole of your shoe and been imported from the road to your garage. If you examine your tyres closely you may find a cut in the carcase where the clip has embedded itself for transit like some malevolent seed pod.