page_title: N700 Series Shinkansen
section_title: 16-car X sets (N700-2000 series "N700A")
hierarchical_section_title: N700 Series Shinkansen / 16-car X sets (N700-2000 series "N700A")
caption_attribution_description: English: JR Central N700-2000 series "N700A" shinkansen set X50 passing through Shin-Shimonoseki Station on the Nozomi 14 service 日本語: N700系 X50編成　山陽新幹線 新下関駅 のぞみ14号/14A
context_page_description: The N700 series is a Japanese Shinkansen high-speed train with tilting capability developed jointly by JR Central and JR West for use on the Tokaido and San'yō Shinkansen lines since 2007, and also operated by JR Kyushu on the Kyushu Shinkansen line.
  N700 series trains have a maximum speed of 300 km/h, and tilting of up to one degree allows the trains to maintain 270 km/h even on 2,500 m radius curves that previously had a maximum speed of 255 km/h. Another feature of the N700 is that it accelerates quicker than the older 700 series Shinkansen trains, with a maximum acceleration rate of 2.6 km/h/s. This enables it to reach 270 km/h in only three minutes. Further advancements led to the development of the N700A, an incremental evolution of the N700. N700A trains can reach 285 km/h on 3,000 m curves, allowing the maximum operating speed on the Tōkaidō Shinkansen to be raised to 285 km/h. All N700 series sets have been retrofitted with most of the improvements added to the N700A series, and are now classified as "N700A".
  Because of these improvements, trains can travel between Tokyo and Osaka on a Nozomi run in as little as 2 hours and 22 minutes on the fastest service.
context_section_description: 81 x 16-car sets, X0–X80 (converted from N700-0 series)
  These are former N700 series Z sets modified between 2013 and August 2015 to incorporate some of the design improvements featured in the later N700A series sets. Cars are renumbered in the -2000 subseries, with the exception of set X0, which is still numbered in the -9000 subseries. The sets are also identified by the addition of a small "A" added to the right of the bodyside "N700" logos.
  The prototype 16-car train (Z0) was delivered in March 2005 for extensive testing and endurance running. Cars 1 to 4 were built by Hitachi, cars 5 to 14 were built by Nippon Sharyo, and cars 15 and 16 were built by Kawasaki Heavy Industries. It was initially fitted with two auxiliary headlights located below the nose.
  The first full-production Z set (Z1) was delivered to JR Central in April 2007, and trains entered revenue service on 1 July 2007, with eight daily Nozomi service runs. The final Z set, Z80, was delivered from Kawasaki Heavy Industries in February 2012.
  From fiscal 2013, the fleet of Z sets underwent modifications to incorporate some of the improvements featured in the later N700A series sets. Modified sets were re-designated "X" sets, with cars renumbered in the -2000 subseries. The modified sets are also identified by the addition of a small "A" added to the right of the bodyside "N700" logos. The first original "Z" set, set Z65, was modified to become set X65 in May 2013, with the last original "Z" set, set Z4, modified to become set X4 in August 2015.
  The prototype set Z0 was used as a JR Central test train with cars numbered in the -9000 series, and was not used in revenue service. It was renumbered set X0 in 2014, but the car numbers remained in the -9000 subseries. The set was officially withdrawn from service in February 2019.
  Withdrawals of N700 series X sets commenced in July 2020, beginning with set X12.
caption: JR Central N700-2000 series set X50, September 2014
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