Originally Posted by 2manybikes
The standard 15mm shorty open end -box from craftsman fits in the very small seat packs. It's probably the lightest, shortest, and the smallest of them all. Plus it's full polish, and at Sears.
+1, this is what I carry in a geniuine innovations repair kit bag that fits in a back jersey pocket. It's not cheap, but the same price or less than the Surley, and weighs less. No bottle opener/gut hook like the Surley, but how often do you really use that?
You can buy just the wrench as a Sears *Hardware* store, or probably have a normal Sears order it for you.