BTW_ how much stronger do you think .040" is gonna make the cylinder skirts? thats the differance in a 72.9mm and a 73.9mm, the drawback to the 73.9mm is the pistons alot heavier then the 72.9mm, because the skirt is almost 2 times as thick, but they do use a wider ring that aids in durability opposed to the 72.9mm pistons from wiseco.
