When combining accessories and adapters, the low load capacity / payload is relevant.
Mini Adapter · transparent
small map holder made of transparent plexiglass
Handy map-holder competely made of plexiglass, easily mounted onto handlebar or stem using the KLICKfix Mini-adapter. All map sizes simply slide in. With quick release system, easy to remove by pressing the red button. Can also be used in combination with handlebar bags.
Unifit Mounting: patented adapter mounting system with stainless steel strap.