Pingel chrome metric smooth petcock features a 22mm inlet with right spigot and adapter nut. Pingel metric smooth petcock includes metric nut utilizing right and left hand thread, so once installed adapter nut can be loosened, valve put in the desired position and nut retightened. No need to use telfon tapes meaning less chance of leakage. Designs are made for a seated position on the motorcycle with the hose outlet facing a direction to ease fuel line hookup. Fits: FL 1975-1984 FX 1975-1984 FXST 1984-1994 FLST 1986-1994 XL 1975-1995 FXR 1982-1994 FXD 1991-1994