The new Malossi Big Bore Racing Cylinder for Vespa 200, Piaggio 200 and Aprilia 125-200 Liquid Cooled Leader engine Scooters. 

Cylinder

Bore 75.5 mm;
Stroke 48,6 mm;
Displacement 218;
Compression ratio 12.5:1.
Material: primary aluminium alloy with a high content of hardened and tempered silicon, cylinder liner with silicon carbide coating in a galvanic nickel die and crossed smoothing with two diamond passages with very limited tolerances.
Machining: on machine tools with high precision numerical control.
Cylinder-piston connection with an allowance of 0.05 mm.
Recalculated and upgraded heat exchange surfaces.

Piston

Ultra compact with 3 rings.
Material: special aluminium alloy with high silicon content, low thermal expansion and a tin facing on the sliding surfaces.
Machining on machine tools with numerical control.
Lightened and reinforced.
Upgraded heat exchange surfaces.

Piston rings

Special rings with high sliding ease and very high mechanical resistance.
I° ring compression in nitrided and chromium steel.
II° special cast iron ring.
Three - piece scraper ring made of chromiumplated specialsteel alloy.

Fits

PIAGGIO BV 200
VESPA GT 200
VESPA GT L 200