Goodridge is the world's leading manufacturer of performance fluid transfer systems. It operates in the O.E.M., automotive, motorcycle, motorsport, defense and specialist industrial sectors. This dynamic private company manufactures in ten facilities globally and supplies customers around the world with a unique combination of design, innovation, reliability and outstanding service. Goodridge - innovate, don't imitate. Thanks to the built-in check valve, this is truly a one-person bleeder once installed. Thread sealed system makes it easy to open the bleeder screw to perform the bleeder operation. Sold in pairs. Part Details: SB1428 - 1/4-28" thread (Harley-Davidson part# 44179-58). SB3824 - 3/8-24" thread. SB7100 - 7 mm x 1.0. SB8125 - 8 mm X 1.25. SB1010 - 10 mm X 1.0. SB8125LL - Honda Gold Wing front / rear / clutch.