Cylinder Kit MALOSSI MHR Racing MINARELLI HORIZONTAL LC 70cc / Ø47,6 / PIN Ø12

CYLINDER

• Material: special aluminium alloy with high percentage of silicon and titanium that guarantees exceptional strain strength even at high temperatures.
• Heat treatment: special quenching and stabilizing treatment that gives the material increased toughness and strength, guaranteeing that mechanical and size specifications will remain unaltered for temperatures of up to 250 °C.
• Chip-forming machining: carried out on NC machining centres with extremely-limited size and shape tolerance (roundness, perpendicularity).
• Inner surface coating: effected using silicon carbide on a nickel matrix with heat treatment that guarantees extreme hardness (around 600 HVO, 1/5) and excellent resistance to wear.
• Internal machining of cylinder: using special machines that allow a degree of finish on the cylinder barrel walls whose roughness corresponds with the angles set at the design stage (grinding process using special stone).
• Port and exhaust diagrams: designed and manufactured especially for racing. The definition of the port and exhaust diagrams has requested considerable effort on the part of our engineers both on engine test stands and the circuits on which the trophy is held.

PISTON

• Material: special aluminium alloy with a very high percentage of silicon and titanium that guarantees both excellent heat resistance and strain strength upon temperature variation.
• External coating: graphite coating that guarantees a very low friction coefficient
• Structure: reinforced in order to offer resistance to the stress suffered by cylinder units used for top-level competition, but at the same time light enough to reduce inertial force.
• Ring: 1 mm nodular-cast-iron single ring with rectangular cross section and hard-chromium coating on outer surface.

PISTON RINGS

• Rings in very strong modular cast iron with ground, wear-resistant, hard chrome metal-spray coating on the contact surface.

HEAD

• Material: special alluminium alloy with a very high heat exchange coefficient.
• Geometry of heat exchange surfaces recalculated and increased.
• Combustion chamber completely-designed to obtain a high compression ratio with a very high turbolece.
• Machining: numerically controlled machines.

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

Fits for models:
Aprilia Area 51 50 H2O 2T E1 '98-'00
Aprilia Gulliver 50 H2O 2T '96-'98
Aprilia Rally 50 H2O 2T '96-'99
Aprilia Sonic 50 H2O 2T E1 '98-'03
Aprilia Sonic 50 H2O 2T E2 '04-'08
Aprilia SR 50 Racing H2O 2T '97-'00 (Minarelli)
Aprilia SR 50 Replica H2O 2T '94-'96 (Minarelli)
Aprilia SR 50 Sport H2O 2T '97-'00 (Minarelli)
Benelli 491 50 Racing H2O 2T '98-'01
Benelli 491 50 RR H2O 2T E1 '99-'03
Benelli 491 50 Sport H2O 2T '97-'01
Benelli K2 50 H2O 2T '98-'01
Beta ARK 50 H2O 2T '97-'98
Beta ARK 50 H2O 2T E1 '99-'01
Beta ARK 50 H2O 2T E2 '02-'06
Beta ARK 50 X-Type H2O 2T E2 '03-'05
Beta Eikon 50 H2O 2T E1 '98-'02
Beta Eikon 50 H2O 2T E2 '03-'05
Beta Eikon 50 Team H2O 2T E2 '06-'07
Italjet Dragster 50 H2O 2T E1 '98-'02
KTM ARK 50 H2O 2T '97-'98
Malaguti F12 50 Phantom H2O 2T '94-'98
Malaguti F12 50 Phantom H2O 2T E1 '99-'02
Malaguti F12 50 Phantom H2O 2T E2 '03-'06
Malaguti F12 50 Phantom R H2O 2T E2 '07-'12
Malaguti F15 50 Firefox H2O 2T '96-'98
Malaguti F15 50 Firefox H2O 2T E1 '99-'02
Malaguti F15 50 Firefox H2O 2T E2 '03-'06
MBK Mach G 50 H2O 2T E2 '02-'15
MBK Nitro 50 H2O 2T '97-'98
MBK Nitro 50 H2O 2T E1 '99-'01
MBK Nitro 50 H2O 2T E2 '02-'12
MBK Nitro F1 50 H2O 2T E1 '99-'01
MBK Nitro F1 50 H2O 2T E2 '02-'04
MBK Nitro II 50 H2O 2T E2 '13-'16
MBK Nitro Naked 50 H2O 2T E2 '05-'12
MBK Nitro Naked II 50 H2O 2T E2 '13-'16
Rieju First 50 H2O 2T '95-'99
Rieju RS 50 Sport H2O 2T E2 '14-'16
Rieju RS 50 Urban AIR 2T E2 '14-'16
Yamaha Aerox 50 H2O 2T '97-'98
Yamaha Aerox 50 H2O 2T E1 '99-'01
Yamaha Aerox 50 H2O 2T E2 '02-'12
Yamaha Aerox II 50 H2O 2T E2 '13-'16
Yamaha Aerox Naked II 50 H2O 2T E2 '13-'16
Yamaha Aerox SP 50 H2O 2T E1 '99-'01
Yamaha Aerox SP 50 H2O 2T E2 '02-'12
Yamaha Jog RR 50 H2O 2T E2 '02-'15