Genuine Bigsby parts ____ for pure Bigsby sound, feel and performance. Bigsby offers a wide selection of parts for players looking to restore or upgrade their vintage or contemporary instruments.Genuine Bigsby sand cast polished aluminum guitar bridge saddle. Stud spacing is 2-13/16" center to center and the string spacing is pre-slotted at 2" with a 12" radius. Compensated for a plain G string, this is a direct replacement for many Gretsch solid and hollow body guitars.