CYLINDERS PIT BIKE (Ducar - Lifan - Jialing 110 - 125 - 140 cc engines) TECHNICAL FEATURES Cylinder - Material: Aluminium alloy with high content of silicon, hardened and tempered, silicon carbide and galvanised nickel coated cylinder sleeves, diamond honed surface finished with a double criss-cross pattern while maintaining extremely tight tolerances. - High precision numerical controlled machining. - Cylinder-Piston matched sets within 0.05 mm. - Heat exchange surfaces redesigned and increased. Piston - Ultra compact with 3 piston rings. - Material: Special aluminium-silicon alloy with low thermal expansion and selective tin deposition onto piston skirt areas. - High precision numerical controlled machining. - Reinforced and lightened. - Heat exchange surfaces increased. Piston rings - Special low friction with high mechanical strength. - Top compression ring made of chrome plated nitrided steel. - 2nd compression ring made of special cast iron. - Three-piece oil control ring made of chrome plated special steel alloy. NB: considering the difficulty in indentifying the engine manufacturer in certain vehicles, we suggest to carefully verify stroke, pin diameter and mounting stud pattern before purchasing Malossi products. 3113225 - 3113238 Ø 53 3113438 - 3113689 - 3113693 Ø 56 1 2 Vehicle Engine Malossi Cylinder Original vehicle?s displacement Stroke Ø Pin 1 PIT BIKE FY152FMH 3113238 - Ø 53 107 / 110 49,5 13 2 POLINI XP 4S 156FMI 3113689 - Ø 56 125 56 13 1 PIT BIKE / HONDA XRM FY152FHI / XRM110ME 3113225 - Ø 53 110 / 125 57 13 2 PIT BIKE 1P55FMJ 3113438 - Ø 56 140 59 15 2 PIT BIKE 1P56FMJ 3113693 - Ø 56 150 59 15