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Get Easier & More Precise tuning for Your Bass

One full turn of the tuner is about one full tone change on each string, making tuning easier, quicker, and more intuitive.

Bass Ratio - Get the Info Pack

OR ORDER HERE.

The simple genius behind Ratio® Tuned Machine Heads

RATIOS match the gear ratio to the core thickness of every string so that every string responds the same to tuning adjustments.
Learn one string, and you've learned them all:
1 TURN = 1 TONE
On EVERY string!
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We've tuned the gear Ratios to each string position so that every string responds the same to any tuning adjustment

You get fine tuning on the thicker core strings and coarser tuning on the thinner core; anywhere from 23:1 to 48:1 gear ratio.  This makes tuning, retuning and open tunings easier, quicker and more intuitive.

Artboard 1Bass Ratio - GraphTech - 4 Gears with Notes

Available for 4, 5, and 6 strings!

BassTuner

Exclusive double envelope, hardened steel gear for strength and precision on higher gear ratios

Bass Ratio - Learn More

Available for 4, 5, and 6 strings

1 (3)

2 (1)

3-835

you can also get ratio for guitar and ukulele

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Artboard 1GraphTech_Ratio_MainImage

Make tuning, retuning and open tunings easier, quicker and more intuitive with Guitar Ratios.

From gears anywhere from 12:1 to 39:1.

Guitar Ratios_CTA

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  • The world's lightest machine heads (5 grams) for a more balanced instrument.
  • Zero backdrive and zero backslash.
  • Easier tuning.
  • Tuning will last longer!

tunealele

uke3-v3

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"I didn't know tuning my bass could be a recognizably better experience.

I love the RATIOS, and they're so smooth!"

NicolRow

Nicole Row

Bassist for Panic! At The Disco

Learn more about RATIO

Download the Ratio Info Pack
(And click on the Checkbox at the bottom to Order)