Ibanez Wiki
GRX20 BKN.jpg
GRX20 Black Night (more images) Red copyright sprite.png

The GRX20 is an RX series solid body electric guitar model introduced by Ibanez for 2000. It is produced in both China and Indonesia as part of the entry-level GIO line. In the US market it is known as the GRX20Z.

The GRX20 features two pickguard-mounted humbucking pickups and a two-point synchronized tremolo bridge. Produced simultaneously in China and in Indonesia, the specs for this guitar vary somewhat by market.

In mid-2017 a new fretboard material, treated New Zealand pine, replaced rosewood.[1] For 2018 the tremolo was specified as the T106 for guitars sold in the US market; this tremolo was offered worldwide in 2019. Also for 2019 the 3-way pickup selector was swapped out for a 5-way lever. For 2020 the fretboard was changed to jatoba.

It is also included in the IJX20, IJRX20 and IJRX20Z Jumpstart packages which include a practice amp and various accessories. It is available left-handed as the GRX20L.

The GRX20W is very similar except that it has white pickups and pickguard. The GRX20EXB is a similar model with black hardware. The GRX20DX is a similar model with sharktooth fretboard inlays. The GRX720 was a similar seven-string model.

A new silver finish was added in 2016.[2]


Specifications for GRX20
Model name: GRX20 / GRX20Z / IJX20 / IJRX20Z
Year(s) produced: 2000–2021
Sold in: Worldwide (except Japan)
Made in: China / Indonesia
Finish(es): Black (BK) 2000–2004 / Black Night (BKN) 2005–2021 / Candy Apple (CA) 2003–2004, 2017–2018 / Dark Blue? (DB) 2004–2009 / Green Metallic (GRM) 2015–2016 / Jewel Blue (JB) 2004–2021 / Metallic Blue (MB) 2000–2004 / Red (RD) 2009–2014 / Silver (SV) 2016–2017 / Vivid Orange (VOR) 2015–2016
Body type:
Solid body
Body material:
2000–2011: Agathis or basswood
2012–2021: Poplar
Neck joint:
2000–2004: Standard tremolo
2002–2004: FAT-10 tremolo
2005–2018: FAT-6 tremolo
2018 (USA only): T106 tremolo
2019–2021: T106 tremolo (10.5mm string spacing)
Knob style:
Plastic top hat (Black)
Hardware color:
Neck type:
Scale length:
648mm/ 25½"
Fingerboard material:
2000–2017: Rosewood
2017–2019: Treated New Zealand pine
2020–2021: Jatoba
Fingerboard inlays:
White dot
22 / medium
Black plastic (42mm)
Electronics/ Strings
Pickup configuration:
Bridge pickup:
2000–2014: Ibanez PSND1 or STD-H1 (H)
2015–2021: Ibanez Infinity R bridge (H) passive/ ceramic
Neck pickup:
2000–2014: Ibanez PSND1 or STD-H1 (H)
2015–2021: Ibanez Infinity R neck (H) passive/ ceramic
2000–2018: Master volume / master tone / 3-way lever pickup selector
2019–2021: Master volume / master tone / 5-way lever pickup selector
String gauge (factory):
Factory tuning:
1E,2B,3G,4D,5A,6E (E Std.)


Additional finishes/ details
GRX20 BK.jpg
2003 GRX20 CA 2B 01.jpg
Candy Apple (2003)
2017 GRX20 CA 2Y 06.png
Candy Apple (2017)
GRX20 JB.jpg
Jewel Blue
GRX20 MB.jpg
Metallic Blue
GRX20Z RD.jpg
Green Metallic
Vivid Orange
2016 GRX20Z SV.jpg
HH 3-way toggle.png
Pickup switching (2000–2018)
Controls VT3L.png
Control layout (2000–2018)
HH 5-way single-split.png
Pickup switching (2019–2020)
Controls VT5.png
Control layout (2019–2020)
2021 GRX20 JB 5Y 01 back.jpg
Rear of body


  1. GRX20Z product page, Ibanez USA, archived November 2017
  2. 2016 USA summer new product book (page 9)