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2008 Yamaha WR250X Review

8-25-2008

by Pascal Bastien , moto123.com

Yamaha is finally launching a supermoto model in Canada. According to the engineers, this newcomer was designed for riders looking to start a supermoto career or simply have fun on public roads.

The new X is Yamaha's first supermoto bike to tread on Canadian soil.

It was worth the wait. Yamaha's new supermotard-inspired steed is armed to the teeth and ready to take on the leaders of its class. When it comes to designing a sport bike, Yamaha's engineers don't know the meaning of the word compromise. The WR250X's basic features are compared to those of a top bike: none other than the R1. The manufacturer's new warhorse leaves no room for compromise, boasting a distinctive style, a technologically advanced engine and an amazing cycle portion.

Small yet powerful
Based on the engine of the famous YZ-Fs, the power plant benefits from the combined experience of the brand's engineers in terms of high-performance, four-stroke engineering. At only 53.6 mm, the piston stroke says a lot about the performance and rpm this engine will deliver. The novel, short-stroke mill features a special cylinder head and an impressive compression ratio of 11.8:1.

Though incredibly powerful and linear, this 4-valve, dual-overhead camshaft engine doesn't display the usual aggressivity of Yamaha's off-road models. It does well in all conditions, lives for high rpm and proves constant in engine speeds, easily maintaining its driveability when grip is precarious. However, it hesitates slightly when opening the throttle at low rpm; luckily, this is easily remedied in normal driving conditions. In short, this is a very effective one-cylinder capable of performing like a bigger engine and just itching to climb the RPM scale. It is unquestionably the most powerful 4-stroke 250-cc single-cylinder engine in the industry, designed to power a street legal bike. What's more, it's greener and more fuel-efficient than most of its competitors.

Competent in many ways
The WR250X's frame is without a doubt the most successfully designed part of the machine. This semi-double-cradle frame is based on the famous WR250Fs; it includes three cast-aluminum sections and an asymmetrical rocker arm with crossmembers, also cast-aluminum.

The most powerful 4-stroke 250-cc single-cylinder engine in the industry, designed to power a street legal bike.
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