Technically, the Keisei Skyliner is not a "bullet train" (Shinkansen), although it is one of the fastest "conventional" trains in Japan. The term "Shinkansen" is reserved for trains that run on a dedicated, high-speed standard-gauge rail network separate from the rest of the Japanese rail system. The Keisei Skyliner runs on the Narita Sky Access Line, which is a "narrow-gauge" or shared-track system. However, it is remarkably fast, reaching top speeds of 160 km/h (100 mph), making it the fastest non-Shinkansen train in the country. It connects Narita Airport to central Tokyo (Ueno Station) in just 36 to 41 minutes. While it lacks the iconic "nose" and 300 km/h speeds of the Shinkansen, the Skyliner offers a "bullet-train-like" experience with reserved seating, sleek aerodynamic design, and incredible punctuality. For travelers arriving at Narita, it is often a more efficient and comfortable choice than the JR Narita Express, especially if your final destination is on the eastern side of Tokyo or near a Yamanote Line station.