The RBM2 is based on the second body shape designed by Reb Beach himself, the first one being the WRB3 model. It is similar in shape to the top of the range RBM2 model, but has more traditional Ibanez features, including a maple neck, a full mahogany body and Ibanez made pickups. The RBM1 was originally introduced without the brass pickguard and with black hardware. After a visual update in 1992 it looked more like the RBM2. The RBM1 was discontinued after 1993. It was replaced by the RBM100 and the more affordable RBM10. In Japan, a EMG pickup-equipped version was issued as the RBM1S.