Besides, its bogie was air cushioned schlieren type bogie series DT46, offering an incomparably comfortable ride to passengers especially in the high-speed range, being so different from a bogie series DT33 for type 103 cars as chalk from cheese.
そのほか、台車も空気ばねでシュリーレンタイプのDT46系台車を装備して、103系のDT33系台車とは雲泥の差の乗り心地（特に高速域）であった。