Twin Air Foam Air Filter | 154212FR gold you insert a pin that

you insert a pin that locks it in the full up position and attach two more straps to additional tie down loops

you can actually spin the spring washer on the bike with the sprocket bolted down

2018 - FE 501

designed with computer analysis

desert or GNCC/cross country

Twin Air Foam Air Filter | 154212FR gold you insert a pin thatThick, flat foam, greaseless sealing ring ensures maximum contact with your airbox while acting as a breathable gasket for increased air passage Coarse open pore foam catches airborn dirt, grime, and sand Fine open pore inner foam acts as second filter to trap the smallest particles while ensuring maximum air passage Adhesive withstands repeated cleaning Smaller than stock to increase air space and circulation around filter