Hoca Minarelli 47.6mm Piston Kit, Part #169-384

Hoca 47.6mm Single Ring PTFE Piston Kit for use with Hoca Ceramic Big Bore Racing Kit with Nikasil Coating for 50cc 2-stroke Minarelli engines. Includes Piston, 10mm Wrist Pin, Wrist Pin Bearing, Cir Clips and Ring. Piston Diameter: 47.5mm. PTFE Coating. Single Compression Ring for Higher RPM. Overall Height (cylinder): 50.5mm. Compression Height: 25.5mm. Wrist Pin Diameter: 10mm.