Piaggio Medley 125 IE Special Edition ABS (MA 01) [2018] - H20 I-Tech cylinder set - Ø63mm Piaggio/Vespa

MALOSSI H20 I-Tech cylinder set with Ø 63 mm

The H20 I-Tech cylinder set from MALOSSI is designed as a big-bore component for racing use. With a Ø 63 mm bore, 58.7 mm stroke and 183 cm³ displacement, it offers clearly defined technical key data. The compression ratio is 11.48. Newly calculated and improved heat exchange surfaces support the temperature balance of the cylinder.

Cylinder and machining

• Bore: Ø 63 mm
• Stroke: 58.7mm
• Displacement: 183 cm³
• Compression ratio: 11.48
• Cylinder-piston clearance: 0.05 mm

The cylinder is made of a primary aluminum alloy with a high content of hardened and tempered silicon. The cylinder liner has a silicon carbide coating in a galvanic nickel die. A crossed smoothing with two diamond passes and very limited tolerances refines the raceway. Machining is carried out on machine tools with high-precision numerical control.

Pistons and piston rings

The ultra-compact, lightweight and reinforced piston is equipped with three rings. It is made from a special aluminum alloy with a high silicon content, has low thermal expansion and has a tin coating on the sliding surfaces. Improved heat exchange surfaces complement the design.

• First ring: compression ring made of nitrided and chrome-plated steel
• Second ring: special cast iron
• Wiper ring: three-piece, made of special chrome-plated steel alloy

Vehicle assignment

The cylinder set is assigned to the Piaggio Medley 125 IE Special Edition ABS (MA 01) from the full 2018 model year range.

Factual usage information

This product is intended exclusively for use in competitions at designated venues in accordance with the regulations of the relevant sports associations. No liability is assumed for improper use.