This cylinder head by French company Doppler can be mounted with original or OEM quality cylinders (shape of gasket) and will increase compression and thus add a bit of torque.
Note: the water connection has a large diameter as you can see in the picture.
|Doppler Cylinder Head "ER1" 50cc Derbi Euro 2 (EBE / EBS)|
|Product family||Cylinder Kits - Spare Parts|
|Product type||Cylinder head|