Black mamba helmet bag on handlebars, water bag behind in cockpit, Conqueror bag mounted under saddle, Voile straps under frame. I’m already using the Mamba on my handlebars with the water bag behind it. It works well. I am a marketer, so I’m always trying to figure out how to sell the most product with the lowest cost and overhead. In my opinion using what you have already with some small modifications or add ons would suffice, which is what I am doing.