Schaller Locking Tremolo Bridge FLOYD ROSE® LOCKMEISTER® complet set (with Locknut cf. All Parts SB-5290-003) Includes matching R2 locking nut, tremolo arm, and mounting hardware. 2-1/8 string spacing. Mounting stud spacing 2-15/16(# 74mm). Radius 12. Nut width 1 and 5/8. Built on C45-steel ground plate and brass block

We can change the block if you need a 32, 42 or 37