Detail 01
Unique ratio for each string position
The set is calibrated to give each string the same response to tuning adjustments.

Independent shopping perspective
For a right-handed four-string bass with a 2 x 2 layout, this chrome Ratio machine-head set uses string-position-specific gear ratios. The calibration is designed so each string responds consistently during tuning adjustments, with the listed Ratio system describing one turn as one tone. A double-envelope gear design with hardened steel gearing supports the higher gear ratios.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
The set is calibrated to give each string the same response to tuning adjustments.
Detail 02
Confirm the headstock's peg-hole diameter before installation.
Detail 03
This is the listed weight for all four machine heads.
Final check

Product questions
Straight answers to the questions shoppers most often ask about this product.
Four, for a four-string bass.
The gear-ratio specification describes one turn as one tone.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.