


Engine Performance* Liquid-cooled, DOHC, 8-valve 399 cc Parallel Twin with fuel injection delivers smooth, responsive performance, especially in the low and medium rpm ranges. The engine was tuned for fun, rider-friendly power characteristics that will inspire confidence in new riders.* The engine's excellent mid-range power characteristics make the bike especially fun to ride at medium speeds on city streets. Roll-on response is exceptional, offering impressive passing performance.* 34 mm throttle bodies feature sub-throttles for high power output with smooth, sensitive throttle response.* Bore and stroke measure 68.4 mm and 54.3 mm - their measurements selected to offer the most exciting performance for a 400cc engine.* The quick-revving engine offers smooth, linear power delivery. Difficult to stall and with rider-friendly off-idle characteristics, the engine has a highly accessible character.
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