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CategoriesGuitarsGraph Tech PRB 5500 C0 Ratio Bass Machine Heads with Y-pillar knob - 5-in-line, bass side (left) - Chrome
Graph Tech PRB 5500 C0 Ratio Bass Machine Heads with Y-pillar knob - 5-in-line, bass side (left) - Chrome
Updated 17 May 2026
BrandGraph Tech
CategoryGuitars
Available at1 UK stores
90-day avg£136.67
Graph Tech

Graph Tech PRB 5500 C0 Ratio Bass Machine Heads with Y-pillar knob - 5-in-line, bass side (left) - Chrome

£139.00£144.003% offFair Price
Cheapest at Bax · 1 store
Buy at Bax — £139.00
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CHEAPEST£139.00
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PRICE HISTORY
Current
£131
Change
+4.9%
Avg
£129
Low
£119
High
£136
Volatility
3.6%
PRODUCT DESCRIPTION
  • These Graph Tech Ratio bass guitar tuning mechanisms are specially designed for 5-string bass guitars. Each mechanism has its own gear ratio, perfectly matched to the corresponding string, allowing a full tone change per rotation. The Y-Style knobs fit comfortably in the hand and the chrome finish gives a sleek look. Ideal for replacement or upgrade of the left side of a 5-in-line bass. Suitable for various makes and models with 5-string left-hand configuration.