Piston Ring (RM125) $ 60.00 SKU: 12140-41310 Piston ring set to suit RM125. Back to: Pistons & Rings ×Close Suzuki Manufacturers of automobiles, motorcycles and marine equipment. http://www.globalsuzuki.com/ Description Suit RM125 1975 - 1980. Suit 54mm piston. Please check part number (SKU) on this page to confirm that it is the correct part you need. May also fit other models so please ask us or your dealer if not sure.