Price updated 29 Apr 2026, 16:00
Graph Tech·Guitars and Basses›Guitar & Bass Spare Parts›Guitar/Bass Machine Heads›2L/2R Tuning Machines for Bass
Graph Tech PRB-4220-B0 Ratio Bass
Fair Price· Near 90-day average
90d Low
£109.90
Best seen
90d High
£109.90
Worst seen
90d Average
£109.90
Baseline
30d Forecast
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| Price + Ship | Store | Price | Shipping | Stock | Condition | Rating | |
|---|---|---|---|---|---|---|---|
Best£109.90 + £8.90 ship | Best£101.00 | £8.90 | Out of stock | new | — |
Product Description
- Graph Tech PRB-4220-B0 Ratio Bass, Set Of Machine Heads For Electric Basses, Configuration: 4 pieces
- 2 x left, 2 x right, Enclosed construction, Each machine head has its own transmission ratio calibrated for the respective string, One full turn of any machine head results in a complete pitch change (+ / -), Gear ratio per string: E - 36:1, A - 30:1, D - 20:1, G - 18:1, Shaft diameter without mounting sleeve: 8.9 mm, Mounting diameter with mounting sleeve: 13.9 mm, Weight per machine head: approx. 52.62 g, Y-Style Contemporary tuning knobs, Finish: Black
