Ratio Guitar Tuning Machine Heads

Introducing Ratio - A new concept in precision tuning, by Graph Tech Guitar Labs

Ratio® Tuners solve a limitation long-ignored by other tuners. When each machine head has the same gear ratio, it makes thicker strings trickier to dial in, and makes lighter strings take longer to land on the right tune. By varying the gear ratio of each tuner, Ratio® makes the tuning experience consistent across each string.

PREDICTABLE, PRECISE TUNING, RETUNING AND OPEN TUNINGS.

Ratio® tuning feels natural. You don't have to think about which string you are tuning because they all feel and respond the same. No more overshooting the Low E or G. No more twisting away on the High E or D string. Open tunings have never been easier. String gauges such as light top, heavy bottom are no problem with Ratio®; they still do the same precision tuning.

FINISHES, OPTIONS, AND INSTALLATION

Each set of Ratio® comes with a complete set of Invisomatch mounting plates. These plates are designed to adapt the current set screw holes in your headstock to Ratio® posts. This makes installation quick and accurate, with no drilling required. That also means no permanent alterations to your beloved guitar.

Sets are available in a variety of styles and colors, in standard and locking versions.