The Jandd frame pack is inexpensive, readily available, and useful for carrying tools, camera, snacks and jacket. The design, alas, does not fit well in bicycles with very small main triangles like my Surly Pugsley. If turned around front to back with the narrowing part of the triangle toward the headtube, however, it works a charm. 45 minutes of work with a Speedy Stitcher enabled me to move the stabilizer straps to positions where they would wrap around the downtube. There remains space for a seat tube bottle.