piston set Naraku 72cc 47mm for GY6 NK100.63

NARAKU replacement piston set for 47mm cylinders. The piston has a CNC-machined oil grooves for enhanced lubrication at the piston skirt. The piston skirt has a special molybdenum coating for the all-important running-in period. Suitable for 47mm V.2 NARAKU GY6 139QMB/QMA cylinder kits and Kymco 4-strokes. Delivery includes piston rings 1 and 2 oil scraper rings, gudgeon pin and circlips.