Korena
Product detailSKU #1500000398481

Graph TechRatio 2+2 Bass Y-Style Button Chrome 4 String

Graph Tech
Graph Tech Ratio 2+2 Bass Y-Style Button Chrome 4 String
1/8

Independent shopping perspective

The Korena take

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.

Graph Tech Ratio 2+2 Bass Y-Style Button Chrome 4 String product detail
Product studyGraph Tech Ratio 2+2 Bass Y-Style Button Chrome 4 String
Graph Tech Ratio 2+2 Bass Y-Style Button Chrome 4 String alternate view
Alternate view

Strong match

Who this is for

  • Replacing tuners on a right-handed four-string bass that uses a 2 x 2 configuration.
  • Bass tuning work where matched response across the four string positions is desired.

Consider the trade-offs

When to look elsewhere

  • Bass guitars without a right-handed 2 x 2 machine-head configuration.
  • Headstocks that do not accommodate the required 14 mm peg holes.

What matters in use

The specifications, translated

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.

Graph Tech Ratio 2+2 Bass Y-Style Button Chrome 4 String construction detail

Detail 01

Unique ratio for each string position

The set is calibrated to give each string the same response to tuning adjustments.

Detail 02

35/64 inch (14 mm) required peg holes

Confirm the headstock's peg-hole diameter before installation.

Detail 03

7.44 oz (212 g) set weight

This is the listed weight for all four machine heads.

Final check

Know before you order

  1. 01Verify right-handed orientation, a four-string bass, 2 x 2 configuration, and 14 mm peg holes.
  2. 02Confirm the 13.9 mm string-post diameter and 26.1 mm distance to the string hole.
Graph Tech Ratio 2+2 Bass Y-Style Button Chrome 4 String close-up

Product questions

Before you decide

Straight answers to the questions shoppers most often ask about this product.

01How many machine heads are included in the set?

Four, for a four-string bass.

02What is the listed tuning relationship?

The gear-ratio specification describes one turn as one tone.

Reference

Full specifications

The complete catalog record, organized around the decisions musicians make when comparing gear.

4 detailsOther
Category Source
detail
Tier
new
Korena Special
false
Source Id
site51500000398481

Worth comparing

More from Graph Tech