GB Class 2 was a series of two trams and two trailers built by Skabo Jernbanevognfabrikk for Graakalbanen of Trondheim, Norway.

Despite running in part in city streets, the trams were 2.6 m (8 ft 6 in) wide.

In 1950, the second motor was delivered from Siemens, and the first trailer could be rebuilt to a tram.

The trams remained in service until 1973 when they were replaced by the TS Class 7 trams, following the merger of Graakalbanen into Trondheim Trafikkselskap, and the subsequent reorganizing of routes, so the Gråkallen Line was operated onwards along the Lademoen Line.

5 is preserved as a heritage tram at Trondheim Tramway Museum, while no.