From the article: What is a Bike Chain Master Link - and What Does It Do?
A removable master link on a bike chain may be the most under-appreciated part on the whole bike. But it can save the day in more ways than one. Has having a quick link on your bike chain ever solved a big problem? Share your story with others, or read how your fellow cyclists have benefited from a removable bike chain link. Share Your Experience
Removable master link
- Having one saved me on a century ride. I found myself on a rual country road with a broken chain. I would have had to call for a ride and ask someone to drive eighty miles round trip to pick me up. It's a life saver. Never leave home without one.
- —Guest Bill