This bag seems like it would be most useful for a racer on race day. It should probably be marketed as such. Pros: The mounting design is clever and very user friendly. And I like that I can buy extra mounting brackets for my other bikes so that I only have to have one bag. The bag itself is well designed and made. Cons: Its barely big enough for a spare tube, repair kit, and air. Very tight fit. The zipper is not very cooperative. Kind of pricey for such a small bag.