Categories›Guitars›Graph Tech PRB 5411 C0 Ratio Bass Machine Heads Open Back with classic trefoil button - 4 + 1 - Chrome
Updated 13 May 2026
| Brand | Graph Tech |
| Category | Guitars |
| Available at | 1 UK stores |
| 90-day avg | £213.00 |
Graph Tech
Graph Tech PRB 5411 C0 Ratio Bass Machine Heads Open Back with classic trefoil button - 4 + 1 - Chrome
£216.00£222.00↓ 3% offFair Price
Cheapest at Bax · 1 store
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PRICE HISTORY
Current
£210
Change
+3.2%
Avg
£210
Low
£196
High
£222
Volatility
3.1%
PRODUCT DESCRIPTION
- The Graph Tech PRB-5411-C0 Ratio Bass Machine Heads are high-quality tuning machines designed for optimal control and stability. Thanks to the unique Ratio system, each string has its own transmission, so one full turn always results in a whole tone change. This makes tuning more intuitive and faster, without over- or under-correction. The set includes five tuning machines (4 left
- 1 right) with an open construction and classic Clover Leaf knobs. Finished in chrome and suitable for bass guitars using 4+1 configurations, this mechanism combines durability, accuracy and a classic look.