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Aluminum contruction to enlarge your Aprilia Rotax powered 125/150 scooter to 67mm bore. Complete with gaskets, piston, rings and pin.

• Cylinder
• - 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 chromium-plated special steel
• SCARABEO 125 4t LC (ROTAX ) SCARABEO 150 4t LC (ROTAX )