Piston ring set for 56cc tuning cylinder with 41 x 1.5mm bore, suitable for Sachs 50/3 and 50/4 LKH engines with 3/4 gear. Compatible with Hercules 219, 218, 220, Miele, DKW, KTM, Göricke, Gritzner, and other models. Suitable for cast iron cylinders.
