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Ibanez built the GRGM21WH as part of the miKro Series, a line designed around a reduced scale length and compact body to serve players who needed a shorter reach — whether younger beginners or experienced players seeking a more manageable instrument. It sat at the entry level of the GRG family within the broader GIO range.
The guitar was constructed with a basswood body and a maple neck carrying the GRGM profile, topped with a jatoba fretboard fitted with sharktooth inlays and 24 medium frets. The 22.2-inch scale and 41mm plastic nut width define the instrument's compact character. Two passive ceramic Infinity R humbuckers — one at the neck, one at the bridge — handled the pickup complement, mounted to an F106 bridge with 10.5mm string spacing. Hardware throughout was finished in chrome. The neck dimensions measured 19.5mm thick at the first fret and 21.5mm at the twelfth, with a 400mm radius fretboard and a width of 56mm at the 24th fret. The guitar left the factory strung to standard E-to-E tuning with a .010–.046 gauge set.
Owners sourcing replacement parts — including bridge saddles compatible with the F106, nut blanks cut to 41mm, or pickup rings suited to the compact body — should consult a qualified guitar technician who can verify fit against the instrument's actual dimensions before installation.
Nothing in The Vault is for sale. These records exist so the instruments stay documented after the manufacturer moves on — and the most useful part of that record is what owners add to it.
The catalog shot showed one finish, under one light, a long time ago. Yours has been played. Photos from owners are what the next person finds when they are trying to identify a part, match a finish, or work out whether the one they just bought is really what the seller said it was.
Specs only go so far. What actually fits, what breaks first, what the factory got right and what everyone ends up changing — that lives with the people who own them, not in a datasheet. Post what you know and it stays on this page for whoever comes looking next.
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From spec questions to full builds — players who have lived this gear since 2007.
Since 2007
