Cylinder Kit (190cc, 71mm); Vespa ET4, LEADER Engine

cylinder kit fits ET4 150, LX150, and other scooters with the Leader 125-150cc engine.
TECHNICAL FEATURES:
Cylinder
– Material: ry 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 chromium-plated special steel
Replacement pistons are available
here.
Replacement rings are available
here.