Malossi aluminum cylinder D 70 4-stroke for 3114621

The Malossi Ø 70 aluminum cylinder is an ideal product for 4-stroke mopeds.

The cylinder has a bore of Ø 70 mm, a stroke of 48.6 mm, and a displacement of 187.6.

The compression ratio is 11.5:1.

The cylinder is made of a primary alloy of bonified high-silicon aluminum, with a barrel that features a silicon carbide coating in a galvanic nickel matrix and a cross-honing with two diamond passes, ensuring very tight tolerances.

The machining is carried out on high-precision CNC machines, with cylinder-piston couplings selected with a tolerance of 0.05 mm.

The heat exchange surfaces have been recalculated and increased to ensure excellent heat dissipation.

The piston, super compact and composed of three segments, is made of a special primary alloy of low thermal expansion silicon aluminum, with a tin coating on the sliding walls.

The piston is also machined on CNC machines, and has been lightened and reinforced to ensure optimal performance.

The heat exchange surfaces of the piston have also been increased for better heat dissipation.

Finally, the segments are special, with high sliding and very high mechanical resistance.

The first segment, the compression one, is made of nitrided and chromed steel, while the second segment is made of special cast iron.

The oil scraper is made up of three pieces of special alloyed and chromed steel.

This Malossi Ø 70 aluminum cylinder, together with the high-quality piston and segments, guarantees high performance and long-term reliability for 4-stroke mopeds.