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.
2015 WRX. I had a rear wheel bearing replaced on my 03 WRX to the tune of $700. his was at an independent shop, not a dealership. It cost a bit more because they had to replace something else while doing the wheel bearing because they couldn't get the part off. A really good shop in Norwood Mass that does work on Subarus is Dentsport Garage.