Russell Speed Bleeders For Harley Hurrah! The fastest way to bleed your brakes Fitment: Fits JayBrake 2- and 6-piston calipers Performance Machine 4- and 6-piston calipers Replaces OEM 44179-58 Features: One-man operation with these easy-to-use bleeder valves with built-in one-way valves Replaces OEM 44179-58 1/4-28 Sold in pairs