RavX Agent X3 11 Function Multi-Tool

This multi-tool has a very slim design but manages to pack in more allen wrenches than I needed to assemble my new bike. I put it in my pocket and forget that it's there, love it. The only reason that I didn't give it 5 stars is that it loosens up a bit with normal use. It is easy to tighten back up though, so as long as you have another wrench to tighten this one up with, I highly recommend it.

This is a good quality tool with everything I need for my road bike. The chain tool works well on 9 and 10sp chains.

Barring carrying a wrench around, this is the only tool you'll need for your bike. One of the other reviewers noted that as you use it, the hex joints loosen up a bit, but are easy to retighten. Completely true, and I've had to tighten it once in 1.5 years. I always have it in my back pocket nowadays. the spoke tool is excellent (on the end of the arm of the chain tool), lets you true your wheel on the fly, which i've had to do after the accident I was in a few days ago. Best bike purchase I've made yet, aside from road tires.