In the 1970s and 1980s, 112 T2 trams were modernized into T2R. Modernization included overhauling of electrical equipment (similar to Tatra T3) and some changes in the car body.
During the 1970s and 1980s, 112 T2 trams underwent modernization, transforming them into T2R models. This process involved upgrading their electrical systems, similar to the Tatra T3 tram, along with some modifications to the car body.