Technical features Built from scratch, in high-strength aluminium alloy and cylinder sleeve with nickel-chromium coating. Consisting of an even thickness central core around the cylinder sleeve and the ports, a constant heat exchange is ensured, therefore, a controlled intake temperature of the gases in the chamber and an optimal heat exchange at the exhaust. It has aerodynamically profiled cooling fins around the core, designed to be penetrated with the best possible efficiency by the cooling air. The major innovation lies in the totally revamped and coated ports, introducing the latest CVF,…

BIG BORE Testa Rossa 94 cc The new generation BIG BORE engine! Stud bolts, only for liquid-cooled scooters (7 ports and exhaut crossbar - piston with 1 segment - modular head - required boring of original case or C-One Malossi case - engine shaft with connecting rod different from the original). Deriving directly from seven port technology, which animates the revolutionary Flanged Mount, BIG BORE Testa Rossa cylinders represent the latest success achieved thanks to the efforts and studies that Malossi has continued to devote to engines intended for original Piaggio and Yamaha cases and, with…

COMPLETE CYLINDER 4-STROKE TECHNICAL FEATURES Cylinder Bore: Ø 58 mm Stroke: 57,9 mm Displacement: 153 cc Material: primary aluminium alloy with a high content of hardened and tempered silicon, cylinder liner with silicon carbide coating in a galvanic nickel die and crossed smoothing with two diamond passages with very limited tolerances. Machining: on machine tools with high precision numerical control. Cylinder-piston connection with an allowance of 0.05 mm. Recalculated and upgraded heat exchange surfaces. Piston Ultra compact with 3 rings. Material: special aluminium alloy with high…

Technical features Cylinder Material: primary aluminium alloy with a high content of hardened and tempered silicon, cylinder liner with silicon carbide coating in a galvanic nickel die and crossed smoothing with two diamond passages with very limited tolerances. Machining: on machine tools with high precision numerical control. Cylinder-piston connection with an allowance of 0.05 mm. Recalculated and upgraded heat exchange surfaces. Piston Ultra compact with 3 rings. Material: special aluminium alloy with high silicon content, low thermal expansion and a tin facing on the sliding surfaces.…

Fun without complications (6 transfer ports – 2 ring piston) Malossi cast iron thermal units, the first and simplest step to modifying your motorcycl’s engine, are the best choice for continued use of the exhaust system of an approved series or type . For these thermal units, the elevated feature of durability of cast iron is combined with the almost manically high quality standards of Malossi, one of the few companies to demand the most from even this class of thermal units. Into this is inserted the most rigid selections for the joining of the cylinder and the piston, strictly maintained…

MHR REPLICA CYLINDER KIT The MHR Replica line of cylinder was created especially for the International Scooter Trophy - 70cc Automatic Class. These cylinder kits were designed to guarantee maximum performance in this category, while at the same time assuring extremely long product life. In order to guarantee these special characteristics, Malossi MHR Replica cylinder kit have pistons with two chrome-plated rectangular segmants and a compression ratio of 13.8:1, plus torque value of 7.35 N.m. (o.75 Kgm) at 8.000 rpm and power of 6.6 Kw (9 C.V.) at 8.500 rpm. The MHR line is the results of…

CAST-IRON CYLINDER KITS Malossi is glad to present the new line of cylinder kits which have been designed for the latest generation scooters. They are unique tools able to defeat the traffic black-out of our cities. They are highly reliable and they have an exceptional torque. They have been studied to support a prolonged stress and can offer high accelerations even on highly pendent roads. They do not know neither fatigue nor wear. Cylinders made of selected lamellar cast iron alloys with recalculated cooling surface. Strengthened pistons made of aluminium alloys with high silicon content,…

Fun without complications (6 transfer ports – 2 ring piston) Malossi cast iron thermal units, the first and simplest step to modifying your motorcycl’s engine, are the best choice for continued use of the exhaust system of an approved series or type . For these thermal units, the elevated feature of durability of cast iron is combined with the almost manically high quality standards of Malossi, one of the few companies to demand the most from even this class of thermal units. Into this is inserted the most rigid selections for the joining of the cylinder and the piston, strictly maintained…

Technical features Cylinder 125 cc: Bore: Ø 67 mm Stroke: 47 mm Displacement: 166 200 cc: Bore: Ø 67 mm Stroke: 58 mm Displacement: 200 Compression ratio: 12:1 Material: primary aluminium alloy with a high content of hardened and tempered silicon, cylinder liner with silicon carbide coating in a galvanic nickel die and crossed smoothing with two diamond passages with very limited tolerances. Machining: on machine tools with high precision numerical control. Cylinder-piston connection with an allowance of 0.05 mm. Recalculated and upgraded heat exchange surfaces. Piston Ultra compact with 3…

The most powerful cylinder kit ever produced by Malossi: over 32 HP at 14,000 RPM. With its large displacement, this kit is exclusively for liquid-cooled motorcycles. Specifically designed for top-level racing, it features the latest evolution of Malossi’s iconic 7-port technology. The standout feature is the support provided to the main rear transfer ports through the use of two ports opposite the exhaust. The cylinder has a close deck structure paired with a redesigned modular head. The head is designed to enter the cylinder’s combustion chamber, safeguarding the nickel coating in case of…