This P2R cylinder head is a real economy in addition to being efficient, first of all, its compression chamber is of much better shape than the origin, it is a hemispherical chamber, its volume is reduced compared to the origin in order to offer more compression! It is therefore a high compression cylinder head. The squish area is a little too far out but that's no big deal.
It comes with the decompressor which is quite surprising for this price. The price is obviously caused by the country of manufacture, but that does not prevent the quality from being very good! The finish is good, this cylinder head will be perfect in combination with a 50cc kit or even the original cylinder. The second advantage of this model is that the stud is larger (mass of aluminum around the spark plug). This cylinder head therefore offers better cooling than the original! We recommend mounting with a thin cylinder head gasket (do not fit an O-ring).
This cylinder head also has a location for the engine numbering, moreover it indicates the engine displacement is 49cm3.