73mm 73.25mm 73.5mm 73.75mm 74mm STD +25 +50 +75 +100 Motorcycle Piston Rings For RF900RV 1994-1997 RF900 RF900R RF 900 Piston rings designed to fit various bore sizes including 73mm, 73.25mm, 73.5mm, 73.75mm, and 74mm in standard and oversized dimensions of +25, +50, +75, and +100.Compatible with RF900RV models from 1994 to 1997, as well as RF900, RF900R, and RF 900 motorcycles.These piston rings help maintain proper compression and oil control within the engine cylinder.Each set includes the necessary , second, and oil control rings for complete piston assembly replacement.Sized for precise fitment according to manufacturer specifications. This is a non-OEM replacement.Any mention of brand names is strictly for compatibility clarification.