The RG531 is a Roadstar II series solid body electric guitar model introduced by Ibanez in 1987. The Roadstar II series would eventually become known as the RG series.
Despite the RG name, the RG531 has the rounded-edge body style and swoopy, rounded headstock of the older Roadstar II style.
The RG531 features a basswood body w/ a flame maple top bolted to a maple neck with a 24-fret rosewood fingerboard with dot position markers. Components include dual Ibanez IBZ humbucking pickups with Duo-Sound coil splitting functionality and an Edge double locking tremolo bridge. The Back Stop tremolo stabilizer in combination with the Edge trem, Back Stop and Top-Lok III nut was marketed as the "Sure Bet Tuning System."
The RG652 is a similar model without the flame maple top.
The RG531 was offered only in Japan and was discontinued after 1987.