This small and clever made part solved a problem I had some time ago: How to attach a huge 1l button to a full-suspension mountain bike. I tried a lot of alternatives like attaching to the saddle and also some other mounts to the handle bar. But only the Top Cage Cap Mount survived going off-road without falling off. Also, the simplicity of the approach is stunning: Where others fail with complex fittings this one is simple, durable and simply works.