You need toI hate when people contradict themselves. He starts off going on and on about how the literbikes are too fast to be practical, and way faster than anything else... then says 600s are just as fast on the street AND track. You just said two opposite things. So with a heavy heart I must declare this article complete and utter crap.
in-line four refers to the engine configuration, which has four cylinders in a straight line. Such engines gave birth to super bikes when riders realized they could get oodles of power by wringing them out. Many of the fastest race bikes still use this configuration.They have four liters out now!? Holy shit! Power wheelies at 320 mph!