2009 Yamaha R1
#1
2009 Yamaha R1
Yamaha debuted their new R1 today at the dealers meeting in Las Vegas. Looks to be a pretty amazing machine sporting some technological firsts for a production street bike. The crossplane crank is probably the biggest news. I will definitely be looking to pick one up when they come out.
2009 Yamaha YZF-R1 Home, information, info
2009 Yamaha YZF-R1 Home, information, info
#5
Taken from Yamaha's website:
Crossplane technology, first pioneered in MotoGP racing with the M1, puts each connecting rod 90° from the next, with an uneven firing interval of 270°- 180°- 90°- 180°. This all but eliminates undesirable inertial crankshaft torque, which allows the engine’s compression torque to build smoothly and provide a very linear power delivery out of the corners. It’s a feeling that’s simply unmatched, like having two engines in one: the low-rpm torquey feel of a twin with the raw, high-rpm power of an inline 4.
Crossplane technology, first pioneered in MotoGP racing with the M1, puts each connecting rod 90° from the next, with an uneven firing interval of 270°- 180°- 90°- 180°. This all but eliminates undesirable inertial crankshaft torque, which allows the engine’s compression torque to build smoothly and provide a very linear power delivery out of the corners. It’s a feeling that’s simply unmatched, like having two engines in one: the low-rpm torquey feel of a twin with the raw, high-rpm power of an inline 4.
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