Airsal 060713476 - Airsal Piston Kit For Benelli 491 50 LC 2004-2006

Features: Airsal cylinders are made in aluminium and Scanimet coating ( nickel + silicon carbide ). This coating improves resistance to wear and tear also the mechanical properties of the cylinder. Hardness ( +600 wickers ), flexibility, lower heating besides low friction coefficient are the main differences against the cast iron cylinders.