Reviewed by Benaru from Atlanta on Wednesday, March 19, 2014
I bought two of these, one for my wife and one for myself. Sadly, the bag only fits her bike as she has a setback seat post. My seat post is straight and there isn't enough room on the narrow part of the saddle rails to fit the bag's clamp. Aside from that, it's a great little bag. Just enough room for a tube, levers, and CO2. If you want enough room for that plus your phone, I'd recommend the medium.