inputs.text: no locking mechanism needs heavy modification work - not sure product like could get way production without ever tested apparently looks nice fits handlebar gps nicely falls apart put use lower part bracket clamps onto bikemotorcycle handlebars advertised provides slideon track ought lock upper part place upper part snaps onto gpss back satisfying click sits lower unit slideon track no locking tab no set screw no retaining mechanism kind try ride first bump send gps unit flying mount first thought missing set screw part not even holes even place secure unit using wire ties velcro strap without heavy modification unit useless looks like mfr never actually tried test