The Type 89 was driven through the rear drive sprocket and featured nine bogies, mounted in pairs on each side, with the forward bogie on an independent suspension. Five smaller return wheels were mounted along a steel girder. The Type A could only communicate with signal flags. Some vehicles were provided with two searchlights for night operations. Later the Type 94 Mk 4 Hei (1934 model) radio communication device with range of and weight of , linked with a radio antenna of in a reverse L shape was installed.