Vespa 946 [2013-2020] - aluminum cylinder ø 63 pin ø 14 4-stroke

MALOSSI aluminum cylinder for Vespa 946

The MALOSSI aluminum cylinder ø 63 with pin ø 14 is designed for the Vespa 946 built between 2013 and 2020. The 4-stroke component combines a bore of 63 mm with a stroke of 58.6 mm and achieves a displacement of 182.67 cm³. The compression ratio is 11.15:1.

Technical features

• Material: Primary aluminum alloy with high content of hardened and tempered silicon
• Cylinder liner with silicon carbide coating in electroplated nickel form
• Cross smoothing with two diamond passes and very limited tolerances
• Cylinder-piston connection with a tolerance of 0.05 mm
• Recalculated and improved heat exchange surfaces
• Machining on high-precision machine tools with numerical control

Pistons and piston rings

The ultra-compact piston has three rings and is made of a special aluminum alloy with a high silicon content, low thermal expansion and a tin coating on the sliding surfaces. It is reduced in weight and reinforced; its heat exchange surfaces have also been improved.

The piston ring equipment includes special rings with high sliding properties and high mechanical strength: a nitrided and chrome-plated I-ring made of steel, a special cast ring and a three-part wiper ring made of special chrome-plated steel alloy.

Vehicle assignment

Suitable for Vespa 946, years 2013-2020.

Factual note

The product is intended exclusively for racing at designated venues in accordance with the regulations of the relevant sports authorities. No liability is assumed for improper use.