The cbr 250r is named for its powerfull accele_45ration.with single cylinder.four stroke.and four valves.and liqiuid cooling.this beast is the prodiction of the honda company.in 2011.this bike was primarly intended to sell in india and thai markets but this bike sold all over the world.and main countries like north amerika europe.and etc.this is an 249.6 cc engine with.23.7 hp@9, 900 rpm.and with the top speed of 147 on stock.if we mod the bike with turbo at 10 psi it goes around 198kmph.so guys the cbr 250 is the best