Malossi Aluminium 75,5 Pin 16 H2O Scooter 300 4 - Stroke Cylinder-piston kitRef : MAL00749A / 1147877

Description

TECHNICAL SPECIFICATIONS

Cylinder

• Bore Ø 75.5 mm;
• Stroke 63 mm;
• Displacement 282;
• 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 special steel alloy.

Head

• Head made of gravity-fed cast aluminium alloy, tempered and sandblasted, machined within thousandth (mm) tolerances utilizing super precise work cells.
• Valve guides designed with new profile, made using a powdered metal sintering process (steel, phosphorous, carbon, copper and manganese).
• Valve seats made of cobalt-molybdenum steel alloy characterised by copper infiltration and a special heat/chemical treatment. Increased intake valve - ø 25 mm, made of a special steel alloy and a special heat/chemical treatment.
• Increased exhaust valve - ø 22.2 mm and made of Nimonich 80 material (Nickel, Chromium, Titanium, and Aluminium alloy).
• Exhaust and Intake valve springs made of Si-Cr oil-tempered and annealed steel, designed to operate optimally under increased loads due to increased engine power.

 

Products reserved exclusively for racing in specifically designed locations according to the provisions of the competent sporting authorities. We disclaim all liability for improper use

Compatible brands and models

Brand Model APRILIA APRILIA ATLANTIC S 300 ie 4T LC euro 3 (PIAGGIO) APRILIA APRILIA SCARABEO Special 300 ie 4T LC euro 3 (PIAGGIO M28RM) APRILIA APRILIA SPORTCITY CUBE 300 ie 4T LC euro 3 (LEADER M28LM) APRILIA APRILIA SR MAX 300 ie 4T LC euro 3 DERBI DERBI RAMBLA i 300 ie 4T LC euro 3 (PIAGGIO) GILERA GILERA NEXUS 300 ie 4T LC euro 3 PEUGEOT PEUGEOT GEOPOLIS R/GT 300 ie 4T LC euro 3 PEUGEOT PEUGEOT GeoRS 300 ie 4T LC euro 3 (PIAGGIO M28MM) PIAGGIO PIAGGIO BEVERLY 300 ie 4T LC euro 3 <-2009 (M28MM) PIAGGIO PIAGGIO BEVERLY 300 ie 4T LC euro 3 2010->2016 (M692M) PIAGGIO PIAGGIO BEVERLY 300 ie 4T LC euro 4 2017->2020 (MA21M) PIAGGIO PIAGGIO BEVERLY TOURER 300 ie 4T LC euro 3 PIAGGIO PIAGGIO CARNABY 300 ie 4T LC euro 3 (QUASAR) PIAGGIO PIAGGIO MP3 300 ie 4T LC euro 4 2016->2018 (TA11M) PIAGGIO PIAGGIO MP3 300 ie 4T LC euro 3 2009->2014 (QUASAR M634M) PIAGGIO PIAGGIO MP3 300 ie 4T LC euro 3 2014->2016 (M862M) PIAGGIO PIAGGIO MP3 YOURBAN 4V 300 ie 4T LC euro 3 2011->2016 PIAGGIO PIAGGIO MP3 YOURBAN SPORT 4V 300 ie 4T LC euro 4 2017->2018 PIAGGIO PIAGGIO X7 EVO 300 ie 4T LC euro 3 (QUASAR) ROYAL ALLOY ROYAL ALLOY GP 300 LC VESPA VESPA SEI GIORNI 300 ie 4T LC euro 4 2018-> VESPA VESPA GTS Super 300 ie 4T LC euro 3 <-2013 (QUASAR M454M) VESPA VESPA GTS Super 300 ie 4T LC euro 3 2014->2016 (QUASAR M454M) VESPA VESPA GTS Super 300 ie 4T LC euro 4 2017->2018 (QUASAR M458M-M45EM) VESPA VESPA GTS 300 ie 4T LC euro 4 2017->2018 (MA33M) VESPA VESPA GTV 300 ie 4T LC euro 3 (QUASAR)