Power unit CHALLENGER PUFFO Vespa ET3 d57 inlet manifold d.30 -130cc
- CYLINDER casted in aluminum alloy with high silicon and magnesium percentage for guarantee maximum hardness, elasticity, and work resistance. The barrel has a galvanic plating with nichel-silicon with hardness of 600 HV and finishing with CNC machine for obtain a roughness optimal for piston fluidity.
- PISTON casted in aluminum alloy with high silicon percentage for guarantee high temperature stability. Machining by CNC machine for obtain a profile perfect adaptable with the cylinder barrel.
- PISTON RING in steel treated with surface treatment for guarantee maximum resistance to wear and reduced friction.
- HEAD CNC machined in aluminum alloy for guarantee optimal heat exchange. The optimized combustion chamber geometry allows high compression rate and turbulences.
- Aluminium cylinder d57 nikasil plated
- Inlet manifold d.30mm
- Head CNC machined side spark plug
- Reed valve with 4 petals and flowguide
- Piston Vertex with 1 ring in steel
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408,52 € +VAT
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