K&N Filter Oil Aerosol Spray 6.5oz SIZE_Piston Oversize (+2.10mm) sliding in place between the

sliding in place between the helmet shell and EPS liner at the bottom of the chin bar

Restores air flow efficiency

such as may be caused by clothing

20S EVO and 30K communication systems

Replacement Rings: 920XSY

K&N Filter Oil Aerosol Spray 6.5oz SIZE_Piston Oversize (+2.10mm) sliding in place between theK&N 99 0504 is a 6. 5 ounce aerosol can of air filter oil. K&N Air Filter Oil is the only oil specially formulated to work in combination with the cotton fabric in K&N air filter elements, providing a superior air filtration system. When used as directed, it quickly penetrates the filter pleats, where it remains suspended in the cotton fabric. Saturation is maintained until the element is cleaned with K&N Air Filter Cleaner. Features: The only oil