the invention relates to yo - yos and in particular high - performance ball - or roller - bearing yo - yos capable of extremely wide string - gap settings suitable for “ new school ” yo - yo tricks . the present invention addresses the need to center the yo - yo string on the bearing or bearing sleeve along the axial extension of the outer surface of the yo - yo bearing or bearing sleeve or in relation to the effective “ string gap ” between the opposed inner faces of the two yo - yo halves . the present invention also provides an effective and economical string - bearing surface able to span the wider string gap required by “ new school ” styles and modes of play . the present invention enables the variable stacking of successive lays of string either side of the securing loop during complicated yo - yo string trick routines .