TOKYO -- Honda Motor and three Japanese rivals plan to discontinue about 20 motorcycle models by the end of this year, Nikkei has learned, in response to tougher emissions standards to be implemented in Japan in the fall.
Japan's big 4 retire some bestsellers in response to tougher emission standards

Honda will end production of the CB400 Super Four motorcycle. (Photo courtesy of Honda Motor)
TOKYO -- Honda Motor and three Japanese rivals plan to discontinue about 20 motorcycle models by the end of this year, Nikkei has learned, in response to tougher emissions standards to be implemented in Japan in the fall.