Yamaha YZF R1 motorsports

January 17th, 2012 by motoxstar.com | Posted under Motosport.

The Yamaha YZF-R1 is an open class sport bike, or superbike, motorcycle manufactured by Yamaha Motor Company since 1998. In late 2008, Yamaha announced they would release an all new R1 for 2009. The new R1 takes engine technology from the M1 MotoGP bike with its cross plane crankshaft, the first ever production motorcycle to do so. Crossplane technology puts each connecting rod 90° from the next, with an uneven firing interval of 270°- 180°- 90°- 180°. The idea of this technology is to reduce variations of internal crankshaft speed, thus giving the new R1 a more linear power delivery. Yamaha claims the bike would give the rider ‘two engines in one’, the low end torque of a twin and the pace of an inline four. As with previous incarnations of the R1, the 2009 model keeps its YCC-T (Yamaha Chip Controlled Throttle).