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IKRG85703 Hawaiian Koa top (more images)

The IKRG85703 is a limited edition RG series solid body electric guitar model introduced by Ibanez in 2025. It is crafted in Japan by FujiGen as part of the exclusive J Custom line. It is being offered exclusively for sale by Japanese retailer Ikebe Gakki in commemoration of the 50th anniversary of the company's establishment. The IKRG85703 is based on the RG8570 and was produced in small quantities.

The IKRG85703 features a mahogany body with Hawaiian Koa top bolted to a maple and wenge neck with a 24-fret Macassar ebony fingerboard with abalone and mother of pearl Tree of Life inlay. The neck is built with a Super Wizard profile. The headstock features Hawaiian koa to match the body. Components include DiMarzio pickups with black Air Norton (neck) and Air Zone (bridge) humbuckers flanking a True Velvet single-coil, an Edge double locking tremolo bridge, a locking nut, Gotoh tuning machines, and Gotoh knurled metal knobs.

The IKRG85701 and IKRG85702 are related models with quilted maple top and other finishes. The IKRG85271 is a seven-string limited model that was produced for the same occasion.

Specifications[]

Related content: J Custom series | RG series |
Specifications for IKRG85703
Model name: IKRG85703
Year(s) offered: 2025
Sold in: Japan
Made in: Japan
Price: SMAP: ¥ 500.000 incl. 10% tax (2025)[1]
Body
Body type:
Solid body
Body material:
Mahogany w/ Hawaiian Koa top
Neck joint:
AANJ
Bridge:
Edge tremolo (10.8mm string spacing)
Knob style:
Gotoh VK1-19 (knurled metal dome)
Hardware color:
Gold
Neck
Neck type:
RG J Custom Super Wizard
Neck material:
5-piece maple/ wenge
Scale length:
648mm/ 25½"
Fingerboard material:
Macassar ebony
Fingerboard inlays:
Abalone & mother of pearl Tree of Life
Frets:
24 / jumbo stainless steel (J Custom edge treatment)
Nut:
Top-Lok III (43mm)
Machine heads:
Gotoh SG381 (non-locking)
String gauge (factory):
.009/.011/.016/.024/.032/.042 (D'Addario EXL120)
Factory tuning:
1E,2B,3G,4D,5A,6E (E Std.)
Electronics/ case
Pickup configuration:
HSH
Bridge pickup:
DiMarzio Air Zone (H)
Middle pickup:
DiMarzio True Velvet (S)
Neck pickup:
DiMarzio Air Norton (H)
Controls:
Master volume / master tone / 5-way lever pickup selector
Output jack:
¼" stereo barrel angled side mount
Included hard shell case:
yes

Images[]

2025 Ibanez IKRG85703 ( Rear: Mahogany body bolted to a 5-piece maple/ wenge RG J Custom Super Wizard neck and Gotoh machine heads )
Additional details
Body front
Headstock
Machine heads

Sources[]

  1. Ikebe 50th Anniversary J Custom IKRG85703 (Hawaiian Koa Top) product listing, Ikebe Gakki (Japanese retailer), archived July 2025