The Co-Pilot is Road Runners smaller stem bag. If you're trying to keep it light and minimal then this is a good option. A 27oz bottle like the Crust Disco Bottle is a perfect fit in this bag, but you could use your imagination and fit all sorts of different stuff in it. Unlike the Auto-Pilot this bag doesn't have the outside pockets.
Would be a nice supporting character for a handlebar bag.
This bag is a good fit on any bike your heart could desire to put it on.
Made in Los Angeles California
Materials Used- Made of 1000D Cordura backed with a 400D Heavy Rip Stop Nylon Liner
Colors- Black, Burgundy, Grey, Navy, Olive, Rust
Volume: Enough to fit a 27oz water bottle
Here are some installation instructions from Road Runner:
This bag is a quick and easy install on any bike/stem/handlebar combo.
1. Determine which side of the bars you would like it on and mount the stem strap around the stem. You will find which strap is fit for the stem as it runs vertically and is permanently affixed to the bag near the pull cord.
2. The other strap (which runs vertically and is totally removable) is meant for attaching the bag to the handlebar on either the right or left side.
3. The third strap (which runs in a horizontal direction) is meant to strap the bar to the head tube. Creating the third mounting point and giving the bag minimal sway or sag.