HEAD INSERT "PRO 4" DERBI EURO 3 (50mm)

"The cylinder heads have been developed by our engineers for optimal operation in combination with our cylinders, with the appropriate compression ratio for smooth functioning.

They are cast in aluminum and machined with CNC equipment to ensure the highest quality and reliability.

WARNING: All Metrakit products must be used in compliance with the regulations of the competent authorities in each country. Metrakit assumes no responsibility for improper use."