Vespa Primavera 125 3 V S [2020] - aluminum cylinder ø 63 pin ø 14 4-stroke

MALOSSI aluminum cylinder for the Vespa Primavera 125 3 V S

The MALOSSI aluminum cylinder ø 63 mm is designed for the Vespa Primavera 125 3 V S from 2020. The 4-stroke component has a bore of 63 mm, a stroke of 58.6 mm and a displacement of 182.67 cm³. The compression ratio is 11.15:1.

Technical features

• Cylinder made of primary aluminum alloy with a high proportion of hardened and tempered silicon
• Cylinder liner with silicon carbide coating in electroplated nickel form
• Cross cut with two diamond passes and very limited tolerances
• Processing on numerically controlled high-precision machines
• Cylinder-piston connection with a tolerance of 0.05 mm
• Recalculated and improved heat exchange surfaces

Pistons and piston rings

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

The ring set includes an I-ring made of nitrided and chrome-plated steel, a special cast ring as a second compression ring and a three-part wiper ring made of special chrome-plated steel alloy. The piston rings are designed for high sliding properties and high mechanical strength.

Vehicle assignment and use

Suitable for the Vespa Primavera 125 3 V S, built in 2020. Installation is carried out exclusively with the Force Master 2.1 control unit. This product is intended exclusively for competitions at designated venues in accordance with the regulations of the relevant sports associations.