DOPPLER ER1 high compression air cylinder head without decompressor for high engine 50cc Ø39mm on MBK 51 / av10 motobecane

Ideal for the 50cc DOPPLER ER1 kit or other brand or even on a high original engine, here is the DOPPLER high compression cylinder head. This model is much improved in relation to an original cylinder head. On the one hand, it is made from the best aluminum, and secondly, it has a well-worked high-compression combustion chamber in a frustoconical shape with a polished finish.

The squish zone is not at zero which is normal given the removal of the thickness of the original aluminum gasket, unlike the PARMAKIT (which we prefer on certain high engines…). We can say that it looks like the MALOSSI although the MALOSSI works its squish differently and has a slightly more studied hemispherical chamber.

The cylinder head gasket is mounted viton o-ring. You can obviously use a standard aluminum gasket if desired (check your squish well). In short, this cylinder head has a good price, and will offer good performance and improvements, finish and sound quality at the rendezvous.

Replacement cylinder head gasket