Malossi Sport Cylinder Kit for Vespa P200
Vespa never dies
1983: the aluminum cylinder with 68,5 mm diameter - turning point in Vespa tuning - was born.
Made of Nicasil aluminum, with super light piston and 1.2 mm semi trapezoidal rings, it becomes a legend, a real must-have for all Vespa fans.
2008: the cylinder is updated, by adding the head with hemispherical combustion chamber and central spark plug.
2013: the cylinder, always made of Nicasil aluminum, has been completely changed concerning both main and rear ports and exhaust port as well.
The perfect centering between head and cylinder is guaranteed by two centering bushes located on two stud bolts, while the o-ring ensures a perfect seal.
2016: to complete a long list of improvements, we introduce a new “black“ piston with a molybdenum sulfide coated skirt. The semi- trapezoidal ring seat and dome remain unchanged , while the real innovation is the completely new mold , where new windows allow not only a perfect match with the latest generation of the cylinder , but also interchangeable with its previous versions. The reinforcement ribs , totally revisited , provide a lightweight design with even greater strength.
2022: The connection to the silencer is made by means of a flange-joint set fixed to the cylinder through four cap screws and to the exhaust through an o-ring seal to avoid any leakage from the cylinder kit. This extremely easy system allows to fit with the maximum resistance any kind of exhaust with Ø44.5 mm inlet diameter present in the market, thus avoiding any unscrewing or rotation due to vehicle vibrations.
Art. 3118591
This version offers a better performance compared to the previous one. It can be fit together with completely original or slightly modified crankcases, original carburettor or carburettor with 30mm diameter and Malossi Power Exhaust Art. 3218742.
TECHNICAL FEATURES
ALUMINIUM CYLINDER
Cylinders obtained by gravity die-casting in permanent steel moulds.
Material: hardened and tempered high silicon content primary aluminium alloy.
Machining: on numerically controlled high precision machine tools.
Cylinder liner with silicon carbide metal-spray coating on a galvanic nickel matrix, cross-honed with passes with diamonds for very tight tolerances.
Recalculated and increased heat exchange surfaces.
Exhaust and transfer ports designed and tested for maximum thermodynamic performance.
Dimensional and surface finish quality control performed according to Malossi's internal specifications.
Cylinder and piston selected for a fit of 0.005 mm.
Checking of all the seals carried out.
M3113764
