http://motocrossactionmag.com/Main/News ... -9243.aspx

Lulz that's the dumbest ive heard all day!Kuma wrote:Not bad, except for this part "If you flipped a piston upside down and tried to drop it into the cylinder bore from above, it wouldn’t fit. How can that be? The sides of a piston aren’t straight from top to bottom. "
If the cylinder is bored straight then the piston will go through fron either direction.