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Malossi 70cc Big Bore Cylinder for Keeway, CPI, Binelli with 12mm Wristpin


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Malossi's most popular 70cc Cylinder for the Keeway and other Minarelli 50cc 2 Stroke Engines with 12mm wristpins. Very reliable, durable, and built to outlast the original parts. Excellent Value for the price. Requires Regular Minarelli Style Aftermarket Exhaust, will not fit Exhausts specially made for CPI exhaust port angle. Use any standard Minarelli Exhaust on your scooter. DOES NOT INCLUDE HEAD.Malossi CAST-IRON 70cc CYLINDER KITSMalossi cast-iron cylinder kits: the best balance between component performance and life of the component.
The cast-iron cylinder kits produced by Malossi s.p.A. are designed and manufactured with the specific objective of obtaining high combustion efficiency, long life, and a reliability that suits the Malossi name. From the experience gained in the design of cylinder kits for racing, Malossi engineers have developed the thermodynamics of cast-iron cylinder kits to the fullest and designed the inner fluid mechanics of the cylinder kit with fanatical precision (see the transfer ports, exhaust and combustion chamber), thereby obtaining a high level of turbulence in the combustion chamber. The latter has permitted a substantial reduction in fuel consumption and a drastic reduction in the exhaust emission of pollutants.Technical features- Material: wearproof, laminate special cast iron
- Recalculated heat exchange surfaces
- NC machine-tool machining
- Transfer and exhaust disigned for maximum efficiency
- Lightened and reinforced, special aluminium alloy pistons with a high silicon content
- Optimized compression ratio
- Very high turbolence combustion chamberBENELLI 50cc 2T
CPI  50cc 2T
KEEWAY  50cc 2TChinese 2 Stroke with 12mm wristpin.





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