the present invention the shape and outer diameter of the frame member insert section 48 must be slightly smaller than an inner diameter of the tubular frame c of the motorcycle frame a within and to which the replacement slip fit neck adapter 10 is inserted and attached in the replacement slip fit neck adapter 100 for the 2009 to present harley davidson motorcycle frames fig9 16 the replacement slip fit neck adapter 100 comprises a cylindrical neck 120 having an outer surface 122 and an inner cylindrical bore 124 a rear frame connector assembly 130 defining a upper plate 132 a lower plate 134 a pair of side plates 136 and an inner tubular frame extension 140 in addition the replacement slip fit neck adapter 100 includes an optional fairing mounting bracket 300 the fairing bracket 300 including a front neck bracket base 302 a plate support 304 and a front bracket plate 306 having a plurality of plate bores 308 through which a motorcycle fairing is attached the bracket base 302 and plate support 304 held together by at least two bracket mounting pins 305 allowing removal of the bracket base 302 and plate support 304 to be removed from one another when the fairing is not wanted by the operator the primary difference between the embodiments for the 26 inch and the 30 inch replacement slip fit neck adapter 100 for the selected 2009 to present motorcycles is defined within the orientation and relative dimension of the inner tubular frame extension 140 and plate dimension in the 30 inch embodiment the.