Yamaha has revealed the official details on the 2011 YZF-R1, the only production motorcycle with a crossplane crankshaft. The 2011 YZF-R1 is powered by a 998cc, DOHC, 4-valve, in-line 4 engine developing 182 hp at 12500 rpm and 115.5 Nm (85 lb.ft.) of torque at 10,000 rpm, and delivering a fuel consumption of 40mpg (5.88 l/100km).
The engine features forged aluminum pistons that take maximum advantage of the power characteristics. Titanium intake valves are lightweight. A forced-air intake system is adopted to increase intake efficiency by using the natural airflow during riding to pressurize the air in the air box. This contributes to outstanding power delivery characteristics in the high-speed range, while the design also helps to minimize intake noise.
For 2011, the side fairing is smooth for a sleek appearance. And, instead of the usual four-bulb headlight design, the R1 has only two projector-type bulbs mounted closer to the nose of the bike. This positions ram air ducts closer in for a more compact, smooth look. In addition, the rounded lenses are unique to the supersport industry.