POLINI Cylinder Kit - Ø39,8mm for Derbi, Aprilia, Gilera

Polini top end assemblies for 50cc can be used to recondition the cylinder kit with an identical reliability specification to the manufacturer's original equipment. They are fabricated from high-quality materials using the manufacturer's skills in the area.

• 40 mm diameter piston
• Long-term reliability
• Technology borne out of Polini 's experience in competition