2012 Yamaha Xt250 Dirt Bike on 2040-motos

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Moto blog

Unique Sounds of the New Yamaha R1

When Yamaha announced its new R1 literbike last fall, company reps told us about the tractability assets of its new, MotoGP-derived crossplane crankshaft for the four-cylinder engine. It’s unique in that cylinders fire 90-degrees apart, allegedly enabling better grip during acceleration. A byproduct of this design is an exhaust note that is distinctive in this world of cookie-cutter designs.

Villopoto, Roczen Dominate AMA Supercross in Oakland

Monster Energy Kawasaki’s Ryan Villopoto dominated the 450SX Class on Saturday night in front of a record crowd in Oakland, CA.   In front of a record crowd of 46,896, Monster Energy Kawasaki’s Ryan Villopoto raced to his second-consecutive AMA Supercross victory, an FIM World Championship, 450SX Class Main Event win at O.co Coliseum in Oakland, CA on Saturday night. Rockstar Energy Racing’s Davi Millsaps finished in second, and Red Bull KTM’s Ryan Dungey followed in third.

Stoner explains the tank slapper

Casey Stoner looked all set to win at Motegi, after translating his pole position into an early race-lead. But coming over the crest on the back straight his bike momentarily lost control in a tank slapper. Regaining composure the championship leader was forced to pump his brakes to get the pads back in place, with the rear-wheel bouncing in the air he ran out of time and space to make the 90 degree right hander and was forced to run into the gravel.