Big Bore Size: 54/55/56/57/58/58.5/59/60/61/62/63/65/66/69

RS-01049：RS Original 49 cylinder

RS-01054：RS Big bore 54 cylinder

RS-01055：RS Big bore 55 cylinder

RS-01056：RS Big bore 56 cylinder

RS-01058：RS Big bore 58 cylinder

RS-01058.5：RS Big bore 58.5 cylinder

RS-01059：RS Big bore 59 cylinder

RS-01060：RS Big bore 60 cylinder

RS-01061：RS Big bore 61 cylinder

RS-01062：RS Big bore 62 cylinder

RS-01063：RS Big bore 63 cylinder

RS-01065：RS Big bore 65 cylinder

RS-01066：RS Big bore 66 cylinder

RS-01069：RS Big bore 69 cylinder