Radius breather bolts from Lowbrow Customs feature an innovative design with 5-ply sintered stainless steel mesh, providing the proper breathability for your motor while keeping a slim profile and a completely custom look. An internally broached allen allows for a quick and hidden installation method, with the stainless breather element and circlip finishing the job. A perfect match with your choice of air cleaner and carburetor support bracket, these 1/2″-13 thread breathers fit Harley Davidson Evolution Sportster (XL) and Big Twin motors. Available in chrome plated steel, black electroplated steel, or brass. Made in Ohio, USA.

See Additional Information below for fitment.

NOTE: The threaded section of the breather bolt measures approximately 11/16″ long, measure the aftermarket air cleaner thickness to make sure it will work with your application.