The quality of the aluminum holder is good, it’s not the cheap plastic often associated with these types of products. The issue is that the clamp does not securely attach to the standard handle bars of the Juggernaut Duo. We had two bikes delivered for pickup to the Vancouver Biktrix showroom, where all accessories were installed for us. The technician couldn’t find a way to secure the holder, and the grip stickers would not hold in place due to the taper in the handlebars, so he added thicker rubber grips to the clamps. However, by the time we got home one had already come loose and almost falling off. I had to replace the rubber clamp grips with rubber strips wrapped around the handlebar for it to stay secure in place, but the only place the cell phone holder will hold securely is when installed right up against the handle bar stem. This puts it directly above the electronics display, leaving little room to adjust either as they tend to get in each other’s way. There needs to be a better option for a cell phone holder, or at the very least a better clamping mechanism.