Originally Posted by
HillRider
The Park MT-1 "dog bone" tool is my favorite. It's very small, light, inexpensive and has the essential tools: 3,4,5,6,8mm hex keys, 8,9,10mm box wrenches and a small screwdriver. The allen keys are arranged for good leverage which isn't always the case with multi-tools. It, a small chain tool and tire levers have covered all of my roadside needs.
+1 on the Park. Figure out what you are likely to need. I have never needed a chain tool. Good luck!