Arlen Ness AN-81-000 90 Degree Monster Sucker Air Cleaner Kit Black for Big Twin 93-17 w/CV Carb or Cable Operated Delphi EFI the RS4 AIR has a

the RS4 AIR has a carbon knuckle shell on the back and leather padding at the cuffs

a chin guard vent and a rear extractor hollowed in the shell which direct air to the rider’s head without interference with the internal sun visor

• Metal air vents and extractors

• The ideal balance between stiffness

• Standard red filters are pre-oiled

Arlen Ness AN-81-000 90 Degree Monster Sucker Air Cleaner Kit Black for Big Twin 93-17 w/CV Carb or Cable Operated Delphi EFI the RS4 AIR has aDescription for Arlen Ness Monster Sucker Black Air Cleaner Kit 81 000 Monster Sucker kit features our patented Big Sucker "hidden breather"? technology and more filter surface area for maximum performance Hidden breathers are o ringed at the heads and exist out the mouth of the injector carb to provide efficient engine breathing, eliminating the need for any external hoses or hardware Filter features a built in inverted top to pull in air not only