Yes. Each of my bikes has a multi tool in its seat bag and they all have chain tools built in. Glad I had my Alien with me today as I needed it. I was riding the new monstercross bike on some dirt roads when it started shifting funny and the chain jumping to the small ring without me shifting. I stopped to see what was going on and I saw that the side plate on one of the chain links was busted and about to fall off. I guess I shouldn't have reused the chain when I transferred the components over from the Casseroll. The chain tool allowed me to remove that link and put the chain back together and ride home. It would have been a 5 mile hike or a call for a ride without it.