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.
HEAD casted in aluminum alloy for guarantee optimal heat exchange.
Adaptable to all Rumi 125 models with exhaust and intake adjustments, for the Formichino model it may be necessary to mill the side fins for housing in the bodywork.