Welcome to y2f

July 4, 2009


The new-generation YZF-R1 is more closely linked to our MotoGP winning M1 than ever before. For 2009 this legendary motorcycle is equipped with an all-new 998cc inline four-cylinder engine with a crossplane crankshaft that runs with an uneven firing interval of 270º - 180º - 90º - 180º. This innovative new design ensures superb throttle linearity, giving a feeling that the rider’s throttle hand is directly connected to the rear tyre. The new engine feels and sounds smoother than ever, and emits an unforgettable growl from the exhaust. Pushing out 182 PS at 12,500 rpm with 115.5 Nm of torque at 10,000 rpm, this MotoGP-inspired engine is without a doubt the most technologically advanced powerplant ever seen on a Yamaha supersport bike. And for the ultimate in feel and controllability, the new-generation R1 runs with an all-new Deltabox chassis offering an idealized rigidity balance.
for more information check our online forum communitiy. This is like no in-line-four cylinder sportsbike ever produced. It’s simply sensational. The Yamaha R1’s ultra-short-stroke engine has a cross-plane crankshaft, with its crank pins set at 90° and has irregular firing intervals, which is technology lifted directly from Valentino Rossi’s factory YZR-M1. At a standstill the motor spins up like a two-stroke and on the move the R1’s ability to accelerate, no matter where you are in the revs is astonishing. Thanks to the clever engine design it grunts off corners like a V-twin, while giving superb feel through the rear tyre, and howls along straights like the mad, bad in-line-four it really is. Best of all it sounds just like Rossi’s M1 at full chat. Watch the Yamaha R1
continue reading about y2f in page 2 y2f unveiled. 43mm upside down forks now have independent damping, compression in left, rebound in right leg. Yamaha says this improves the damping response. As the forks are connected by the yokes and wheel spindle it’s all one unit, so is still balanced out properly. The rear shock has a new bottom link set-up and a new hydraulic preload adjuster. The steering damper is now speed sensitive, controlled electronically
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