The stress across a surface element (yellow disk) is the force that the material on one side (top ball) exerts on the material on the other side (bottom ball), divided by the area of the surface.
Overview. The WR450F retails for $8,290, making it the sixth-most expensive 450cc 4-stroke enduro bike of 2013. It comes equipped with a 449cc engine, which is slightly larger than average for a 4-stroke motor.he WR450F retails for $8,290, making it the sixth-most expensive 450cc 4-stroke enduro bike of 2013.
2007 Yamaha Wr450f 2007 Yamaha Wr450f, Up for sale is this rare street legal WR450F Florida plate. You cant buy a new wr450f from the dealer and get it street legal.I went the extra distance to get this Florida legal. Also for sale is my Ktm 125 dirt bike for $975.Both are in great shape and run good.012 Yamaha WR450F Plated/Street Legal (Puyallup For sale is a plated 2012 WR450F. This bike is in excellent condition. It has been ridden on the road for 95% of it's life. It had supermoto tires on it for the majority of the time.