ST-45 was a transport shuttle of the Star Commuter 2000 model. It provided passenger service between Lothal and Garel, two planets located in the adjacent Outer Rim. RX-24, an RX-Series pilot droid, was the designated pilot of this shuttle. During their mission to acquire T-7 ion disruptor rifles from the Galactic Empire, the rebels working on Lothal utilized the shuttle to travel between Lothal and Garel.
The animated television show Star Wars Rebels featured ST-45 in its inaugural series episode, "Droids in Distress." The shuttle's design originated from the first version of Star Tours, a Disney amusement park ride. RX-24 is portrayed as the pilot of Star Tours Flight 45 (ST-45) aboard a StarSpeeder 3000 in Star Tours. Pat Presley and Jim Moore, who were series artists, created the design for the shuttle in "Droids in Distress".