Though this bag does not stay attached to the bike, it offers more protection and fuller coverage (as well as a shoulder strap!) relative to the Quick Transit bag. Get this one if you've got a large frame or if you have some other bars than flat ones for an easy fit. +
Designed for Large Tikits or Medium Tikits with H bars, STI bars, drop bars or any other 3 dimensional bars. Bag is double sewn with 400 denier coated pack fabric and has a gusseted section that can be cinched up to fit bike. Shoulder strap and handles are made with polypropylene webbing. Handles are red webbing. Zipper pulls are red cord with zip cord clamps. +
Wt: 616 grams. Rolls up to: 5" diameter, 9 1/2" long +
To watch a brief video of this bag in action, check out this Youtube clip.