Dirt Bikes Review: Part – 2, the evolution of Yamaha dirt bikes. Yamaha’s first dirt bike the DT1 – a 250cc 2-stroke made a big impact on North America’s off road bike scene. In 1975 the YZ250 the first motocross bike to feature a single shock rear end was introduced. The only serious mid capacity - four stroke motocrosser on the market, the YZ400F set the benchmark for the four stroke revolution in 1998, as other manufacturers struggled to catch up. Yamaha’s dirt bike line-up for 09’ includes: the YZ450F which has a redesigned swing arm making it lighter and offers better performance when cornering and it also has better traction. The rear suspension linkage has been reworked to match the new swing arm. The YZ250F also has a new swing arm, reworked suspension linkage, and the new rear hub to take the 25mm axle. The exhaust system has changed, the titanium header is 60mm longer to improve bottom end power, and the muffler is 50mm shorter to improve bottom end throttle response. The YZ125 and YZ250 models had a few updates for 09’ such as a gripper style seat cover, gold plate drive train and both bikes have 48mm KYB forks up front and KYB rear shock. The smallest of the Yamaha dirt bikes – the YZ85 – still has KYB 6mm inverted front forks and the Kayaba link type shock on the rear. The novice rider to the expert rider can experience the fully adjustable suspension front and rear, and a single back bone, double cradle frame for improved handling and cornering. Read all about complete updates for Yamaha’s line up of dirt bikes at:
http://www.motocross-racing-tips.com/yamaha_dirt_bikes.html
Yamaha’s line of motocross bikes for 2010, like the YZ450F, YZ250F, YZ125, YZ85 and its line of off road bikes: WR450F, WR250F,TT-R230,TT-R125LE, just to name a few can be seen and compared at Yamaha’s web site: http://www.yamaha-motor.com
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