• Malossi 318455 MHR Aluminium Cylinder Kit Ø 47.6 mm
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Malossi 318455 MHR Aluminium Cylinder Kit Ø 47.6 mm

Malossi 318455 MHR Aluminium Cylinder Kit Ø 47.6 mm

€409,68 EUR
€409,68 EUR
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The Malossi MHR aluminium cylinder kit is engineered exclusively for high-level racing competitions, delivering exceptional power and thermal efficiency. Manufactured from a specialized aluminium alloy enriched with silicon and titanium, it offers outstanding mechanical resistance and structural stability at extreme operating temperatures up to 250 °C.

Featuring a precision-machined combustion chamber with recalculated heat exchange surfaces, this liquid-cooled kit ensures an optimized compression ratio and superior turbulence. The lightweight reinforced piston includes a low-friction graphite coating and a hard-chromium plated nodular cast iron ring to maximize reliability under intense racing conditions.

Key Features

Brand Malossi
Manufacturer Part Number 318455
Product Type Cylinder Kit
Cylinder Bore Diameter 47.6 mm
Gudgeon Pin Diameter 12 mm
Cooling System Liquid Cooled (H2O)
Cylinder Material Aluminium Alloy with Silicon and Titanium
Cylinder Coating Silicon Carbide on Nickel Matrix
Piston Coating Graphite
Piston Ring Thickness 1 mm
Engine Compatibility 50cc 2-Stroke LC (Piaggio, Gilera, Aprilia, Derbi)

Highlights

  • Engineered from special silicon-titanium aluminium alloy for high-temperature strength up to 250 °C
  • Silicon carbide and nickel matrix internal coating providing exceptional wear resistance
  • Reinforced graphite-coated piston with a 1 mm hard-chromium coated modular cast iron ring
  • Optimized high-compression cylinder head with expanded heat-exchange surface geometry
  • Developed specifically for circuit competition and trophy racing

Compatibility

Manufacturer Model
APRILIA APRILIA SR (carb.) 50 2T LC 2004-> (PIAGGIO)
APRILIA APRILIA SR R 50 2T LC euro 4 2018-> (PIAGGIO CA81M)
APRILIA APRILIA SR R (carb.) 50 2T LC (PIAGGIO)
APRILIA APRILIA SR Street 50 2T LC euro 2
DERBI DERBI GP1 50 2T LC
DERBI DERBI GP1 OPEN 50 2T LC
DERBI DERBI GP1 REVOLUTION 50 2T LC
GILERA GILERA DNA 50 2T LC
GILERA GILERA RUNNER SP 50 2T LC <-2005
GILERA GILERA RUNNER SP 50 2T LC 2006-> (C451M)
GILERA GILERA RUNNER 50 2T LC
PIAGGIO PIAGGIO NRG Power 50 2T LC euro 4 2018->2020 (CA71M)
PIAGGIO PIAGGIO NRG EXTREME 50 2T LC
PIAGGIO PIAGGIO NRG MC2 50 2T LC <-1997
PIAGGIO PIAGGIO NRG MC2 50 2T LC 1998->
PIAGGIO PIAGGIO NRG 50 2T LC
PIAGGIO PIAGGIO NRG MC3 DD 50 2T LC
PIAGGIO PIAGGIO NTT 50 2T LC
PIAGGIO PIAGGIO NRG Power DD 50 2T LC
PIAGGIO PIAGGIO QUARTZ 50 2T LC
PIAGGIO PIAGGIO ZIP SP 50 2T LC 2001->
PIAGGIO PIAGGIO ZIP SP 50 2T LC <-2000

What's included

  • 1x Malossi MHR Ø 47.6 mm aluminium cylinder
  • 1x Malossi MHR aluminium cylinder head
  • 1x Graphite-coated piston Ø 47.6 mm with Ø 12 mm pin
  • 1x Piston ring (1 mm)
  • 1x Gudgeon pin Ø 12 mm with retaining clips

Downloads

Frequently asked questions

What is the bore diameter and pin size of this cylinder kit?

This cylinder kit features a 47.6 mm bore diameter and is designed for use with a 12 mm gudgeon pin.

What cooling system does this cylinder kit require?

This kit is designed specifically for liquid-cooled (H2O) 2-stroke engine systems.

What materials are used in the cylinder construction?

The cylinder is made from a special aluminium alloy enriched with silicon and titanium, treated with a wear-resistant silicon carbide coating on a nickel matrix.

Which scooter models are compatible with this kit?

It is compatible with 50cc 2-stroke liquid-cooled engines across models from Aprilia (such as SR 50 LC), Derbi (GP1), Gilera (DNA, Runner SP), and Piaggio (NRG, Zip SP, Quartz).

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