Categories›Guitars›Graph Tech PRL 8731 LC0 Ratio Electric Locking Machine Heads with Classic Knob - 6-in-Line, Left-handed, Disc side (R

Updated 13 May 2026
| Brand | Graph Tech |
| Category | Guitars |
| Available at | 1 UK stores |
| 90-day avg | £142.67 |
Graph Tech
Graph Tech PRL 8731 LC0 Ratio Electric Locking Machine Heads with Classic Knob - 6-in-Line, Left-handed, Disc side (R
£145.00£147.00↓ 1% offFair Price
Cheapest at Bax · 1 store
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PRICE HISTORY
Current
£138
Change
+15.7%
Avg
£133
Low
£119
High
£144
Volatility
4.6%
PRODUCT DESCRIPTION
- The Graph Tech PRL-8731-LC0 Ratio locking tuning machines are specially designed for left-handed electric guitars with 6-in-line configuration on the treble side. Thanks to the unique Ratio technology, each string has its own gear ratio, so a half-turn always means half a pitch, regardless of the string. This results in faster, more consistent and accurate tuning. The built-in locking system with thumbwheel makes changing strings easy and stable. With classic knobs, sturdy sealed construction and durable chrome finish, this set combines functionality with a stylish look.