Oversized intake for Derbi Piston Port engines. Mikuni VM18 fit these as well as Dellorto PHBG with the 1.5mm shim.
These will not work with the Autisa kits. These are only for the Metrakit or stock style cylinders with the angled bolt pattern. On some cylinders, either the fins of the kit or the edge of the intake will need a little filing to clear.
Some of these have scratches in the paint.
23mm OD and 20mm ID.
Mounting holes are 37mm from center to center. You can probably make this work on other engines as well but no promises.
Made in Spain!