Kawasaki revealed a new 250cc Ninja for the Asian market featuring a single-cylinder engine. Called the Kawasaki Ninja RR Mono or 250SL (depending on the market), the single-cylinder model offers a bit less power and more torque than the parallel-Twin Ninja 250 but weighs 46 pounds lighter.
source: http://blog.motorcycle.com/...
issued: Thursday, March 13, 2014
updated: Thursday, March 13, 2014
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https://www.cmsnl.com/news/single-cylinder-2014-kawasaki-ninja-250slrr-mono-revealed_news2761.html