Based on more than 21,240 customer reviews
  1. Home
    2. /
  2. Guitars
    3. /
  3. Guitar Parts & Tools
    4. /
  4. Machine Heads
    5. /
  5. Bass Machine Heads
    6. /
  6. Graph Tech
    7. /
  7. Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome

no reviews yet write a review
Recommended price £125 -15%
£106 incl. 20% VAT
Online stock status:
 In stock at supplier

Order before 10pm = in about 3 working days at home

-
+
Add to Basket
See also (2)

Graph Tech PRB 4220 B0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Black

Online stock status:
In stock at supplier
Order before 10pm = in about 3 working days at home
Recommended price £118
£99

Graph Tech PRB 4220 G0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Gold

Online stock status:
In stock at supplier
Order before 10pm = in about 3 working days at home
Recommended price £142
£137
Package deal
  • Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome +
  • D'Addario HDS Guitar Head Stand

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads + D'Addario HDS

  • Recommended price £118.90
  • You save £0.90
  • Now as combination for £118
+ -
Add to Basket
  • Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome +
  • D'Addario PW-MPC Microfibre Polish Cloth

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads + D'Addario PW-MPC

  • Recommended price £114.50
  • You save £0.50
  • Now as combination for £114
+ -
Add to Basket
Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome
Product no: 9000-0143-7324 Bax Music Warranty: This product comes with a manufacturing defects warranty.

General

Graph Tech PRB-4220-C0 Ratio tuning machines are specially designed for 4-string basses with a 2L/2R configuration. Thanks to the unique Ratio technology, each string gets its own transmission, making tuning more accurate and consistent. So you always achieve exactly one whole tone with one stroke, regardless of the string. The closed construction ensures durability, while the Y-Style knobs and chrome finish offer a modern look. With solid build quality and precise tuning, this is the perfect upgrade for any bass player who wants more stability and ease of tuning.

Specifications

Product features

Sustainable product not specified
Number of mechanisms 4
Mechanism configuration 2 left + 2 right
Ratio multiple
Mechanism finish chrome
Mechanism type closed
Mechanism shape Y-style / lollipop

Weight and dimensions including packaging

Weight (incl. packaging) 200 gr
Dimensions (incl. packaging) 20,0 x 9,0 x 5,0 cm

Product specifications

  • suitable for: 4-string bass guitar (2L/2R)
  • Brand: Graph Tech
  • model: PRB-4220-C0
  • construction: closed
  • ratio: E - 36:1, A - 30:1, D - 20:1, G - 18:1
  • quantity: 4 pieces (2 left, 2 right)
  • button type: Y-Style Contemporary button
  • finishing: chrome
  • shaft diameter without bushing: 8.9 mm (0.350")
  • mounting hole with bushing: 13.9 mm (0.547")
  • weight per tuning mechanism: approx. 52.62 g (0.116 lbs)

There are no reviews for this product yet.

Other people also bought

  • Dunlop 7036 Lok Strap (Single Strap Lock)

    Dunlop 7036 Lok Strap (Single Strap Lock)
    £0.63
    Quick view
  • Fazley SW02 String Winder and Cutter

    Fazley SW02 String Winder and Cutter
    £7
    Quick view
  • Warwick RockCare Rock n' Ruler String Action Gauge Precision String Height Gauge

    Warwick RockCare Rock n' Ruler String Action Gauge Precision String Height Gauge
    £3.90
    Quick view
  • Boston BSL-20-CH Chrome Strap Locks (Screws Included)

    Boston BSL-20-CH Chrome Strap Locks (Screws Included)
    £9.50
    Quick view
  • D'Addario XLR8 String Lubricant & Cleaner

    D'Addario XLR8 String Lubricant & Cleaner
    £7.95
    Quick view
  • D'Addario HDS Guitar Head Stand

    D'Addario HDS Guitar Head Stand
    £12.90
    Quick view
  • D'Addario Fret Polishing System polishing cloth for frets

    D'Addario Fret Polishing System polishing cloth for frets
    £7.70
    Quick view
  • MusicNomad MN219 Grip Premium Bridge Pin Puller bridge pin trigger

    MusicNomad MN219 Grip Premium Bridge Pin Puller bridge pin trigger
    £7.60
    Quick view
  • MusicNomad MN208 Premium Instrument Work Mat maintenance mat

    MusicNomad MN208 Premium Instrument Work Mat maintenance mat
    £14.70
    Quick view
  • D'Addario Shine Spray Cleaner cleaning fluid 118 ml

    D'Addario Shine Spray Cleaner cleaning fluid 118 ml
    £7.70
    Quick view
  • D'Addario PW-MPC Microfibre Polish Cloth

    D'Addario PW-MPC Microfibre Polish Cloth
    £8.50
    Quick view
  • Konig & Meyer 14590 String Cutter

    Konig & Meyer 14590 String Cutter
    £11.20
    Quick view
  • MusicNomad MN224 Premium Spanner Wrench for Guitar

    MusicNomad MN224 Premium Spanner Wrench for Guitar
    £11
    Quick view
  • Warwick RockCare MultiTool Inch Blue 13-in-1 USA Guitar/Bass Multi-Tool with String Winder

    Warwick RockCare MultiTool Inch Blue 13-in-1 USA Guitar/Bass Multi-Tool with String Winder
    £16.90
    Quick view

Package deal

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads + D'Addario HDS

Product no: 9000-0143-7331
  • Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome +
  • D'Addario HDS Guitar Head Stand
  • Recommended price £118.90
  • Now as combination for £118
  • You save £0.90
In stock at supplier
+ -
Add to Basket

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads + D'Addario PW-MPC

Product no: 9000-0143-7332
  • Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome +
  • D'Addario PW-MPC Microfibre Polish Cloth
  • Recommended price £114.50
  • Now as combination for £114
  • You save £0.50
In stock at supplier
+ -
Add to Basket

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads + D'Addario Shine Spray Cleaner

Product no: 9000-0143-7333
  • Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome +
  • D'Addario Shine Spray Cleaner cleaning fluid 118 ml
  • Recommended price £113.70
  • Now as combination for £113
  • You save £0.70
In stock at supplier
+ -
Add to Basket

Graph Tech PRB 4220 C0 Ratio Bass Machine Heads + Warwick RockCare MultiTool Inch Blue

Product no: 9000-0143-7334
  • Graph Tech PRB 4220 C0 Ratio Bass Machine Heads with Y-style knob - 4-string, 2 + 2 - Chrome +
  • Warwick RockCare MultiTool Inch Blue 13-in-1 USA Guitar/Bass Multi-Tool with String Winder
  • Recommended price £122.90
  • Now as combination for £122
  • You save £0.90
In stock at supplier
+ -
Add to Basket

Other products from Graph Tech

Find all products of the brand Graph Tech
Graph Tech PQ 8001 00 TUSQ ST & TE Style Saddles 6-string, offset (6 pieces)

Graph Tech PQ 8001 00 TUSQ ST & TE Style Saddles 6-string, offset (6 pieces)

In stock
Recommended price £78 £52
+ -
Add to Basket
Graph Tech String Saver PG-8000-F0 Brushed Steel Vintage ST/TE-Style Electric Guitar Bridge Saddles (Set of 6)

Graph Tech String Saver PG-8000-F0 Brushed Steel Vintage ST/TE-Style Electric Guitar Bridge Saddles (Set of 6)

In stock
Recommended price £123 £77
+ -
Add to Basket
Graph Tech PM 8863 N0 ResoMax NV1 Tune-O-Matic Bridge with ResoMax Saddle (large screw pin, 6mm) - Nickel

Graph Tech PM 8863 N0 ResoMax NV1 Tune-O-Matic Bridge with ResoMax Saddle (large screw pin, 6mm) - Nickel

In stock
Recommended price £121 £51
+ -
Add to Basket
Graph Tech String Saver PG-8000-0C Brushed Steel Chrome ST/TE-Style Electric Guitar Saddles (Set of 6)

Graph Tech String Saver PG-8000-0C Brushed Steel Chrome ST/TE-Style Electric Guitar Saddles (Set of 6)

1 review
In stock
Recommended price £126 £72
+ -
Add to Basket

Alternative products by other brands

Search all products in category Bass Machine Heads
Hipshot BT7 Bass Extender Nickel F-Style Made in Mexico Tuner

Hipshot BT7 Bass Extender Nickel F-Style Made in Mexico Tuner

In stock
Recommended price £172 £138
+ -
Add to Basket
Schaller BM4 Light 2x2 Chrome Set of 4 Bass Guitar Machine Heads

Schaller BM4 Light 2x2 Chrome Set of 4 Bass Guitar Machine Heads

In stock
Recommended price £159 £106
+ -
Add to Basket
Fazley 10554 4x3 7-String Bass Guitar Machine Heads (Black)

Fazley 10554 4x3 7-String Bass Guitar Machine Heads (Black)

In stock
Recommended price £26 £13
+ -
Add to Basket
Fazley 10553 4-in-Line Bass Guitar Machine Heads (Black)

Fazley 10553 4-in-Line Bass Guitar Machine Heads (Black)

In stock
Recommended price £22 £11.20
+ -
Add to Basket
Compare your gear (1/10)
Clear Compare