The legendary Bigsby vibrato features a string mounting bar floating on low-friction needle bearings, for accurate return to pitch. Each model has a cast aluminum frame and stainless steel arm. Bigsby's original aluminum rocker bridge is available separately.
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Bigsby model B6: For thicker (2-1/4" to 4"+) archtop guitars that don't need an additional string tension bar. Distance from center of hinge to bottom is 2-1/8". Distance from center of hinge to string anchor bar is 5". 1-5/16" upper mounting screw spread; distance to lower mounting screw is 1-3/16". Strap button slot is 1/2" x 7/8".