Hi guys, Just saw this weight for 02 yz426 f ( http://www.steahlyoffroad.com/weightsdet.php?s_partnum=828_ ) and since we own a machine shop equipped also with CNC machines, I thought that I will make my own weight. I saw that the 9oz is a popular choice and decided to go for that. Question : Is this kit so simple? A steel disc with a weight of 9oz and just bolted to the original flywheel? If true, then my only concern remains the clearance issues. I believe the blue thing in the picture is actually a spacer made from alloy. Is this really necessary? How much space is there currently between the stator cover and flywheel?