hks wrote
my friend also has an hks crankshaft, he did not do any machining of the crankshaft and I saw the same photos on the Internet. he has a box with the date 04/05. step2 is written on it
it weighs 22kg and looks like this
I also found this message
also on yahoo japan other crankshafts, more machining, think weight 20kg
can't define, it's all confusing
I think to lighten the crankshaft by 2-3 kg, but I don't know if it's worth it.