Malossi 318398 MHR Aluminium Cylinder Kit Ø 47.6 mm Pin Ø 12
Malossi 318398 MHR Aluminium Cylinder Kit Ø 47.6 mm Pin Ø 12
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The Malossi MHR Aluminium Cylinder Kit delivers elite two-stroke racing performance, engineered with a premium silicon and titanium aluminium alloy for exceptional thermal resistance and strength up to 250 °C. The cylinder bore features a nickel-silicon carbide coating and precision-machined port timing calibrated for maximum competition output.
Equipped with a lightweight, graphite-coated piston and a high-compression cylinder head, this kit optimizes heat dissipation and minimizes friction under severe track conditions. It is built for Piaggio, Gilera, Aprilia, Derbi, and Vespa 50cc 2T engines requiring a 12 mm gudgeon pin.
Key Features
| Brand | Malossi |
| Product Type | Cylinder Kit |
| Manufacturer Part Number | 318398 |
| Bore Diameter | 47.6 mm |
| Gudgeon Pin Diameter | 12 mm |
| Cylinder Material | Aluminium Alloy with Silicon and Titanium |
| Bore Coating | Silicon Carbide on Nickel Matrix |
| Piston Coating | Graphite |
| Engine Compatibility | 50cc 2-Stroke |
Highlights
- High-grade aluminium alloy with silicon and titanium for heat resistance up to 250 °C
- Wear-resistant nickel-silicon carbide cylinder coating
- Low-friction graphite-coated racing piston
- Dedicated racing port and exhaust timing profiles
- CNC-machined cylinder head with enhanced thermal dissipation
Sizing & fit
Engineered for 50cc 2-stroke engines across Aprilia, Derbi, Gilera, Italjet, Piaggio, and Vespa models with a 12 mm gudgeon pin fitment.
Compatibility
| Manufacturer | Model |
|---|---|
| APRILIA | APRILIA MOJITO CUSTOM 50 2T |
| APRILIA | APRILIA SCARABEO CLASSIC 50 2T euro 4 2018-> (CA91M) |
| APRILIA | APRILIA SCARABEO STREET 50 2T (PIAGGIO) |
| APRILIA | APRILIA SCARABEO STREET 50 2T euro 4 2018-> (CA91M) |
| APRILIA | APRILIA SPORTCITY ONE STREET 50 2T euro 2 |
| APRILIA | APRILIA SR MOTARD 50 2T euro 2 |
| APRILIA | APRILIA SR MOTARD 50 2T euro 4 2018-> (CA41M) |
| DERBI | DERBI ATLANTIS - BULLET 50 2T 2003-> |
| DERBI | DERBI VARIANT Sport 50 2T |
| GILERA | GILERA EASY MOVING 50 2T |
| GILERA | GILERA ICE 50 2T |
| GILERA | GILERA STORM 50 2T |
| GILERA | GILERA STALKER 50 2T |
| GILERA | GILERA TYPHOON 50 2T |
| GILERA | GILERA TYPHOON X 50 2T |
| ITALJET | ITALJET JET SET 50 2T |
| PIAGGIO | PIAGGIO DIESIS 50 2T |
| PIAGGIO | PIAGGIO NRG EXTREME 50 2T |
| PIAGGIO | PIAGGIO FLY 50 2T |
| PIAGGIO | PIAGGIO FREE 50 2T |
| PIAGGIO | PIAGGIO LIBERTY 50 2T |
| PIAGGIO | PIAGGIO NRG MC3 DT 50 2T |
| PIAGGIO | PIAGGIO NRG Power DT 50 2T (C453M) |
| PIAGGIO | PIAGGIO SFERA RESTYLING 50 2T |
| PIAGGIO | PIAGGIO SFERA 50 2T |
| PIAGGIO | PIAGGIO TYPHOON 50 2T 2007->2010 |
| PIAGGIO | PIAGGIO TYPHOON 50 2T euro 2 2011->2017 (C421M) |
| PIAGGIO | PIAGGIO TYPHOON 50 2T euro 4 2018-> (CA41M) |
| PIAGGIO | PIAGGIO ZIP Fast Rider 50 2T |
| PIAGGIO | PIAGGIO ZIP 50 2T 2000-> (C25EM) |
| PIAGGIO | PIAGGIO ZIP 50 2T <-1999 |
| VESPA | VESPA ET2 50 2T 2000-> |
| VESPA | VESPA ET2 50 2T <-1999 |
| VESPA | VESPA LX 50 2T |
| VESPA | VESPA Primavera 50 2T euro 2 (C533M) |
| VESPA | VESPA S 50 2T euro 2 (C381M) |
| VESPA | VESPA Sprint 50 2T euro 2 |
Downloads
Frequently asked questions
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