page_title: 121 series
section_title: Refurbishment and conversion
hierarchical_section_title: 121 series / Refurbishment and conversion
caption_attribution_description: 日本語: JR四国 7200系 7303+7203 高松駅付近にて
context_page_description: The 121 series is an electric multiple unit train type introduced in March 1987 by Japanese National Railways, and currently operated by Shikoku Railway Company on local services in Shikoku, Japan.
context_section_description: From 2016, the entire fleet of 19 two-car trainsets is scheduled to undergo refurbishment, and at the same time reclassified "7200 series". Refurbishment includes replacement of the DC motors with 140 kW AC motors and VVVF control, new side windows, new "efWing" CFRP bogies (S-DT67ef motor bogies and S-TR67ef trailer bogies), and a new livery based on the original style with a thin green line added to the magenta bodyside stripe. Internally, the refurbished trains have fixed four-person seating bays on one side with longitudinal bench seating on the other.
  The first trainset to be treated, set 3, was outshopped from JR Shikoku's Tadotsu Works in February 2016, and entered service from 13 June 2016.
caption: 7200 series set R03 in June 2016
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