2009 Yamaha YFZ450R boosts ability, reduces fatigue

Dailies -


2009_Yamaha_YFZ450R.jpgTo win more races, Yamaha has made the YFZ450 faster. Nearly three inches wider than the non-R, the 2009 Yamaha YFZ450R pushes its wheels out to an overall width of nearly the 50 inch maximum allowed by motocross regulations. Combine that track with the lower engine position brought about by a tension steel bottom frame and you’ll begin to get an idea of how fast this quad should be. But that’s only part of the story. With two Grand National Cross Country championships under its belt, Yamaha has realized that its biggest enemy isn’t other quads, but the strain brought on by riding its machines. The YFZ450R should be capable of going faster for longer, because it takes significant steps to reduce rider fatigue too.
>2009_Yamaha_YFZ450R_blue.jpgNot only is the seat narrower at the front for easier position changes,
but it’s wider at the back for more comfort. The chassis has been
altered in the name of comfort too, making it more spacious, which
creates more room for hanging off, which will be more comfortable
because what plastic you do still end up touching has been made softer.
In case that’s not enough, a revised engine balancer reduces vibrations

All this should make the revised 499cc engine — it uses the cylinder
head and cylinder from last year’s championship winning race quad — and
the fancy KYB piggyback shocks —wheel travel is now 10.4” — more

2009_Yamaha_YFZ450R_red_white.jpgJust like the Euro-spec 2009 Yamaha R1, the white version uses a
red-painted frame. Even though it looks more like purple here (we
suspect too much retouching to the press photos), this could become a
new element of Yamaha’s branding. That bike is a good analogy for this
quad, it represent the pinnacle of the company’s know how and ability
to build the fastest possible vehicles.


  • http://www.atvurge.com ATV Urge

    Man, that looks so cool. I want this.

  • Ryan Crips

    well i think that the old yfz was 110% done the way people want it and i want to see what the oput come is going to be on the reaction of the buyers now

  • http://physicsworld.com/blog/2010/05/post_5.html Kacey Yeatman

    Sometimes it’s so hard to track down the right cylinder head for sale. Maybe I can be of assistance.