201B-4/G - Gotoh® Heavy Duty Bass Bridge - Gold This bridge has a heavier base plate, with grooves for the height adjustment screws in the brasssaddles, eliminates side-to-side motion. The additional weight, more solid design, and grooved saddle path adds punch and sustain to your tone. The 5 mounting holes are 18 mm spacing, 2 1/4" string spacing. 3 1/8" X 2" baseplate, 9/16" high at the back.