The breather disc allows air to pass both ways while limiting the passage of oil or gas

585 valve springs

pair with the Radius Fork Tube Caps for optimum style

Capacity: 2

Engine Rotation Socket - a must-have tool for any occasional or professional engine builder

412 Series 12" Shocks Chrome With Short Covers 1973-1986 Harley-Davidson Shovelheads Subcategory_Gearbox Oil The breather disc allows airThe 412 Series shocks are simply the best value shock on the market today. The 412s simple, durable design means they will be an improvement to your motorcycle's suspension performance for as long as you are riding it. The doublewall steel body construction with nitrogen charged, multi staged velocity sensitive valving gives you smooth, consistent damping. A five position cam style preload adjuster lets you dial in your ride whether you're a light