The arc lever is a simple concept that is not new to motorcycling. The levers' have a pivot that is spring loaded so the blade can move when contacted just like a footpeg or shift lever. They also have an adjustable stop that allows the blade to be positioned in accordance to hand size. Many of the manufacturers use the same lever assemblies on the minis' as on the bigger bikes and the adjustable feature compensates for this. They are made from billet 6061-t6 aluminum, (the most malleable of the aluminum family), on CNC machines for precision and cool factor. These are factory parts at production prices that everyone has access to. Don't let a broken lever end your day!