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At A Glance
- Neck Type
- GSRM5 / Maple neck
- Top/Back/Body
- Poplar body
- Fretboard
- Jatoba / White dot inlay
- Fret
- Medium frets
- Bridge
- B15 bridge
- String Space
- 16.5mm
- Neck Pickup
- Std. J neck pickup (Passive)
- Bridge Pickup
- Std. J bridge pickup (Passive)
- Hardware Color
- Chrome
- Scale
- 726mm/28.6"
- A : Width
- 45mm at NUT
- B : Width
- 67mm at 22F
- C : Thickness
- 21mm at 1F
- D : Thickness
- 22mm at 12F
- Radius
- 305mmR
- Color
- Black
- Series
- miKro
Ibanez produced the GSRM25BK as part of its miKro Series, a line of short-scale bass guitars designed around a reduced body and neck profile. The five-string configuration placed the GSRM25BK at the upper end of the miKro bass range, offering an extended low-end register within the series' compact format.
The instrument was built on a poplar body paired with a maple neck designated GSRM5. The jatoba fretboard carried white dot inlays and medium frets across a 305mm radius, with a nut width of 45mm tapering to 67mm at the 22nd fret. Neck thickness measured 21mm at the first fret and 22mm at the twelfth. The 726mm (28.6") scale length defined the instrument's compact character. A B15 bridge with 16.5mm string spacing anchored the strings, while a passive standard J-style neck pickup and passive standard J-style bridge pickup handled signal generation. All hardware was finished in chrome. The finish on this variant was black.
Owners requiring setup work, nut replacement, or assistance sourcing a compatible replacement bridge or pickups for this instrument should consult a qualified guitar technician familiar with short-scale bass specifications.
STRAIGHT TALK
What Stands Out
Keep In Mind
From the people who own them
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.
Owner photos
Put yours on the record.
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.
What do you know about this one?
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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Gear Help, Handled
From spec questions to full builds — players who have lived this gear since 2007.
Since 2007
Fit & Compatibility
- Bridge, tuner, and nut fit confirmed for your guitar
- Pickup and electronics compatibility checks
- Pedal power and amp/cab impedance matching
Mods & Upgrades
- Upgrade paths for the guitars you already own
- Wiring, routing, and hardware swap guidance
- Advice from people who actually do the mods
The Vault
- Discontinued and EOL guitars kept on record
- Specs, history, and known part compatibility
- Share your builds and mods with the community
