Mat has been in cycling media since 1996, on titles including BikeRadar, Total Bike, Total Mountain Bike, What Mountain Bike and Mountain Biking UK, and he has been editor of 220 Triathlon and Cycling Plus. Mat has been road.cc technical editor for over a decade, testing bikes, fettling the latest kit, and trying out the most up-to-the-minute clothing. He has won his category in Ironman UK 70.3 and finished on the podium in both marathons he has run. Mat is a Cambridge graduate who did a post-grad in magazine journalism, and he is a winner of the Cycling Media Award for Specialist Online Writer. Now over 50, he's riding road and gravel bikes most days for fun and fitness rather than training for competitions.
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The only problem I've had with KMC missing links is dropping one half into gravel or long grass.(@!!*!) Reused them more often than is wise and have never (yet) had one fail. I always carry a spare, which came in handy to replace a bent chain link recently.
To save buying a special removal tool, I filed a notch in both blades of a pair of cheap scissors with a round diamond warding file. A bit of strong woven cord threaded round both pins can also be used to open the link.
I've never had an issue with reusing those links. I have, however, once had a shimano chain break on me when I was pushing hard up a hill. It broke at the weird rivet pin thing that shimano use. Probably my fault in how I fit it in the first place, but that only tells me that the fitting wasn't as idiot proof as the kmc one.
It failed exactly where you'd expect. And yes, I carry a spare!
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KMC 11 speed quick link, tested to destruction. This one lasted 2 years of all-weather commuting, probably going through 25-ish reconnection cycles.
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The KMC single speed missing link is also meant to be single use. But with the ease of cleaning the cogs, I have never wanted to remove the chain. It's only when deep cleaning the 3x9 drivetrains that I ever felt the need to undo the quick links, so I can remove and really get into the jockeys and cogs.
So I now carry around 8, 9 and single quick links. And the Park chain pup, and my original Cool Tool. Oddly in the past 20 years I have only ever had a chain fail once, a 9, at the quick link.
But my first mechanical when I got my new mountain bike in 92 was a dead chain, and I had nothing.
Several others have been impressed when I have given help using a workshop tool though.
If the missing link is not reusable - and you need a chain tool in any case to get the correct length - what is the value of the missing link?
I carry spares so I can repair the chain if necessary (never needed to with KMC chains). If the chain snaps at another link, you've got the option of removing the broken link (with a chain tool) and then joining the ends with a missing link.
I've also re-used missing links several times without issue.
It's far easier to fit a missing link than a loose pin correctly IME (though a competent mechanic may say otherwise). I've reused 9 and 10 speed links that aren't too worn, though wouldn't do push my luck.
I've been running 11 speed since February and have re-used my link about 4 times to no ill effect so far. You can buy 4 SRAM links on Amazon for about £12.
The 11x missing links are £12.50 for 2 so only £6.25 each...
Apparently so. Although I am sure I've taken one apart before.....
For the same gold effect, simply don't lube your chain for months. Result= nice golden patina, orangy gold and squeeky.
Is the missing link different to the one on their 10 and 9 spd chains then? I've been using them repeatedly for years with no issues what so ever.