Originally Posted by
Drew Eckhardt
I keep three master links plus the left overs from a new chain in my saddle bag, which is enough to get back to a full-length chain from the oddest failure I've ever experienced - my chain over-shifted past the big ring, went back on with two loops, and bent a link at each loop.
This is exactly my approach, I keep them in a little bag with a Park CT-5 Mini Chain Brute. The size and weight are minimal but the savings in time and aggravation can be big. A couple of minutes' work and you are back on your way, rather than standing there scratching you head and wondering "WTF am I going to do now?"