Vespa GTS Super 125 Sport [2023] - H20 I-Tech cylinder set - Ø63mm Piaggio/Vespa

MALOSSI H20 I-Tech cylinder set for the Vespa GTS Super 125 Sport

The H20 I-Tech cylinder set from MALOSSI combines a bore of Ø 63 mm with a stroke of 58.7 mm. This results in a displacement of 183 cm³ with a compression ratio of 11.48. The cylinder-piston connection has a clearance of 0.05 mm.

Cylinder and machining

• Bore: Ø 63 mm
• Stroke: 58.7mm
• Displacement: 183 cm³
• Compression ratio: 11.48
• Cylinder-piston connection 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. There is also crossed smoothing with two diamond passes and very limited tolerances. Machining is carried out on machine tools with high-precision numerical control. Newly calculated and improved heat exchange surfaces complement the design.

Pistons and piston rings

The ultra-compact piston is light and reinforced and has three rings. Its special aluminum alloy with a high silicon content is designed for low thermal expansion. The sliding surfaces have a tin coating. The piston is also machined on machine tools with numerical control and has improved heat exchange surfaces.

• 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

The special rings combine a high level of sliding simplicity with very high mechanical resistance.

Vehicle assignment

The cylinder set is assigned to the Vespa GTS Super 125 Sport built in 2023.

Factual usage information

These products are intended exclusively for use in competitions at designated venues in accordance with the regulations of the relevant sports associations. We assume no liability for improper use.