A good multi-tool is ideal. I use one from Topeak that has every size allen you could need for a bike, philips and flat heads, star bits, spoke wrenches, and chain tool. That plus a couple spare chain links and I feel pretty secure.
I don't understand what's up with Shimano chains. It's like they have a stubborn need to stick to ****ty chains or something. I use their shifters and derailers exclusively. I generally use their hubs, cranks, and random other bits. But Shimano chains are just terrible. And what's with this stupid press in, break off pin crap? They're difficult to install, you can't easily remove them for cleaning/replacement, and it's the only chain I've ever had break. I generally go for Sram chains, but have used KMC a couple times and they worked fine too.
Last edited by 3speed; 07-19-19 at 03:02 AM.