The RB850L is a "Deluxe" left-handed Roadstar II Bass series solid body electric bass model introduced by Ibanez for 1986. It was produced in Japan.
The RB650L features a double-cutaway basswood body bolted to a maple neck with a 24-fret rosewood fingerboard with pearl dot position markers, side dots and a matching headstock. Components include a pair of Ibanez LO-B "low impedance" pickup's, an Accu-cast B II bridge with 19mm string spacing, a plastic nut, black hardware and Ibanez Smooth Tuner BII tuning machines.