R-Family Locomotion Unit was a treaded locomotion part for droids with large battery capacity and medium power usage made by Industrial Automaton. It was equipped with a telescoping arm. However, as with most treaded locomotion units, it could'nt jump. R-Family Locomotion Units were made of silicon, aluminium and low-carbon steel, which allowed them to be magnetic. Those locomotion units had average durability and weighed 45.0 kg.