Cylinder Metrakit SP3 70cc Derbi Euro 2

From Metrakit come the new METRAKIT SP 3!!! cylinders
The new Mid-Race cylinder, maintaining its Metrakit line, continues with exhaust outlets with boosters.
They have made some differences in the distribution; the new “SP 3” consists of 5 transfer ports that are somewhat larger than in the previous version.
As a new feature, Metrakit cylinders are now offered with Vertex pistons.

A true gem of a cylinder that should be combined with competition components.