Wunderlich - Clip-On Handlebar Adapter For 22 mm Smartphone Mount for BMW R 1300 RTWunderlich Adapter for Clip On Handlebars Universal 22 mm adapter as a base for mounting smartphone holders Function and product features Functional, universal adapter for mounting smartphones on clip on handlebars using handlebar or round tube mounts with a 22 mm diameter The adapter is securely bolted to the clip on handlebar The open end of the adapter serves as the base for mounting round tube or handlebar holders The contact surface is bead