"Malossi Crankshaft ""MHR"" RHQ piston pin=12mm MBK Nitro / Aerox"

Details
High quality crankshaft by Malossi. HPC stands for high primary compression, or in plain English, it's a fullcircle crankshaft. Better crankcase pumping leads to more power higher up the rev-range with slightly reduced bottom end power though. The 12mm version comes with a special conrod which makes it suitable for use with all 12mm pin pistons.