Product images are provided for reference and may not represent the exact model, configuration, or included components.

At A Glance

Neck Type
GRGM / Maple neck
Top/Back/Body
Basswood body
Fretboard
Maple fretboard / Black dot inlay
Fret
Medium frets
Number of Frets
24
Bridge
Ibanez F106 bridge
String Space
10.5mm
Neck Pickup
Infinity R (H) neck pickup (Passive/Ceramic)
Bridge Pickup
Infinity R (H) bridge pickup (Passive/Ceramic)
Factory Tuning
1E,2B,3G,4D,5A,6E
Strings
-
String Gauge
.010/.013/.017/.026/.036/.046
Nut
Plastic
Hardware Color
Chrome
Scale
22.2
A : Width
41mm at NUT
B : Width
56mm at 24F
C : Thickness
19.5mm at 1F
D : Thickness
21.5mm at 12F
Radius
400mmR
Color
Orange Burst
Series
miKro
Description

Ibanez built the GRGM21MORB as part of the miKro Series, a line engineered around a reduced scale length and compact dimensions. The guitar sat at the entry level of the GRG family, intended for players who required a shorter reach — notably younger players or those transitioning from a smaller instrument.

The GRGM21MORB was constructed with a basswood body and a maple neck carrying a maple fretboard with black dot inlays. Twenty-four medium frets ran the length of the board over a 400 mm radius, with a 41 mm nut width and a scale length of 22.2 inches. The neck measured 19.5 mm thick at the first fret and 21.5 mm at the twelfth. A plastic nut seated the strings, which were spaced 10.5 mm at the Ibanez F106 bridge. Two passive, ceramic-loaded Infinity R humbucker pickups — one at the neck, one at the bridge — handled the signal chain. All hardware was finished in chrome. The guitar shipped in standard E-to-E tuning with a .010–.046 gauge string set.

Owners sourcing replacement parts — including bridge saddles compatible with the F106, or pickups matching the Infinity R format — should consult a qualified guitar technician who can verify fit against the instrument's actual dimensions before installation.

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