Ratio by Graph Tech Model # 5320-C0 (18:1 to 48:1) Bass Taper Shaft Configuration 3x2
4.5 (1,234)
Sold 100+ last 30 days
20% off first order
$149.44
Color
Black
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Quantity
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Description
RATIO® patented gear technology RATIO® - Calibrated Machine Heads incorporate different string gauges into the tuning equation. From Low B to G - 48:1, 36:1, 30:1, 20:1, 18:1.
We balanced the gear ratios to each string simplifying the tuning...
Reviews
4.6
20 ratings
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Replacement Machine Heads for Warwick
Managed to snap an original m/h off my Corvette. After much searching of options chose the Graph Tec as it's the most similar to the original Warwick ones and recommended by Warwick.
Delivered (from Canada ) to the UK in 5 days - Excellent
Simple to fit as like for like replacement.
Clearly marked for each string.
What more could you ask for - Does exactly what is required
D
D · March 14, 2026
Stable and even tuning
Installed these on my 5-string bass. Immediately experienced more stable tuning and all strings tune up at the same rate. Great idea, product and craftsmanship.
C
Craig · February 25, 2026
Great tuners
I was tired of chasing my B string and decided to swap out the Gotoh tuners for Ratio tuners. It has made tuning my bass a simple and straight forward task. No more sneaking up on the note just to jump past it and having to try again. It isn’t like tuning was an arduous task before, but now it’s a breeze.