Malossi 70cc Cylinder Kit for Aprilia SR, Derbi GP1

Malossi 70cc Cast Iron Cylinder kit is a good reliable replacement for the stock cylinder. 12mm wristpin, and liquid cooling cylinder. M317353

CAST-IRON 70cc CYLINDER KITS

Malossi 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 abjective of obtaining high combustion efficiency, long life, and a reliability that suits the Malossi name. Owing to the experience gained in the preparation of cylinder kits for race, Malossi engineers have developed the thermodynamics of cast-iron cylinder kits to the fullest and designed the inner fuid mechanics of the cylinder kit with fanatical precision (see the tranfer pipes, exhaust and combustion chamber), thereby obtaining a high level of turbolence in the combustion chamber. The latter has permitted a substantial reduction in specific 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 chamber

Fits the following models with the Piaggio engine: Does not fit Ditech. 

APRILIA SR 50 with CARBURETOR. 

DERBI GP1 50 2T LC

  • Model: 317353

$209.97