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Racing Cylinder MALOSSI MHR

Team 79cc for MINARELLI AM6
50cc 2-Stroke LC
Ø 50,0mm, aluminium,
1 piston ring(s),pin 12mm,
with cylinder head

CYLINDER KIT MHR modular head
The new MHR MODULAR-HEAD CYLINDER KITS are the natural evolution of the MHR MALOSSI line. The result of the research of its engineers, they have been a decisive factor in the victories of the official national and European teams in the cross and speed trophies. Malossi is happy to be able to guarantee that all riders taking part in the coming season National and European Trophies will have a product offering excellent quality and performance.
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 stabilising 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 HV0, 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.
PISTON RING
Ring in very strong modular cast iron with ground, wear-resistant, hard chrome metal-spray coating on the contact surface.
HEAD
The new Malossi modular head has been specially created to guarantee elimination of the notable amount of heat that develops in an engine with a very high specific horsepower designed for racing.
It consists of a head in special hardened and tempered aluminium alloy with high silicon content that is fixed directly to the cylinder barrel. It is lapped over its entire outer surface by the coolant thus guaranteeing a very large heat-exchange surface. In addition, being unattached to the internal walls it is free to follow the expansion of the cylinder.
The combustion chamber is entirely manufactured using numerical control machines in order to ensure shape and size tolerances to within just one hundredth of a millimetre.
The modular head system is completed by a cover that closes off the upper part of the cylinder, thus guaranteeing that the coolant is fully sealed.
The geometry and cross-section of the combustion chamber for this cylinder unit have been specially designed for use in the Scooter Speed Trophy and Scooter Cross Trophy.


OEM Numbers (for the purpose of comparison)  3112386 (MALOSSI)


Customers also searched for this article with:  race cylinder, performance cylinder, race cilinder, tuning cylinder, alluminium, ally, ally, aloy, alloy


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$329.99
Art.No.
M3112386
1,450g / piece
Stock on hand  

Unfortunately we are not authorized to deliver MALOSSI parts to your country. We recommend you to take the suggested alternative.
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icon scootermodels This product fits the following models
  APRILIA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
APRILIA AF 1 50 AM 6 2T LC
APRILIA MX/RX 50 AM 6 2T LC
APRILIA RS 50 (AM5) 50 AM5 2T LC ´94-´04
APRILIA RS 50 Extrema 50 AM5 2T LC ´93-´97
APRILIA RS50/ Tuono 50 (AM6) 50 AM6 2T LC ´93-
APRILIA Tuono 50 AM 6 2T LC
  BETA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
BETA Enduro RR/Racing 50 AM 6 2T LC
BETA Super Motard RR 50 AM 6 2T LC
BETA Super Motard RR Alu 50 AM 6 2T LC
  FANTIC
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
FANTIC Caballero 50 2T LC
  HM HONDA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
HM HONDA Cre/Derapage 50 2T LC
  HUSQVARNA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
HUSQVARNA CH Racing 50 2T LC
  MALAGUTI
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
MALAGUTI XSM/XTM 50 2T LC
  MBK
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
MBK X-Limit 50 2T LC
MBK X-Power 50 2T LC
  PEUGEOT
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
PEUGEOT XPST Trail/SM 50 AM 6 2T LC
PEUGEOT XR6 50 2T LC
  RIEJU
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
RIEJU RS2 Matrix/Spike/MRX/SMX 50 AM 6 2T LC
  SHERCO
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
SHERCO HRD enduro/SM 50 AM 6 2T LC
  YAMAHA
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
YAMAHA DT SM 50-R 50 AM 6 2T LC -´04
YAMAHA TZR 50 AM 6 2T LC -´03

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