TWIN AIR Air Filter - RMZ450 153216FR Air Filter Sealing Grease Designed to fit most Knucklehead

Designed to fit most Knucklehead models equipped with Linkert early 4-bolt carburetors

outperform and outlast the competition = Top of the line performance

IC Duct5 - Uses a three-position slide gate to improve sealing for reduced noise and water intrusion

that will bring it closer to a MX model

TWIN AIR Air Filter - RMZ450 153216FR Air Filter Sealing Grease Designed to fit most Knucklehead2 stroke kits include a Twin Air filter and a rigid, lightweight, billet aluminum cage that replaces the flimsy plastic stock cage and provides a tight seal to the airbox4 stroke kit replaces the air restricting stock backfire screen with a special backfire resistant layer of foam laminated to the inside Airbox kits include a complete airbox that increases the volume of the intake, wash plug, cage and all mounting hardware Includes a rigid,