Chrome lower fork stem cover is one piece and includes small vent holes located behind the fork tube holes.
Three-piece set can be installed without disassembling forks.
XLCH 33.4mm Version is Stock for 1958-1970 XLCH Sportster
Chrome 35mm Version is Stock for 1973-87 Sportster
Chrome 39mm Version OEM 45709-88T is Stock for Late 1987-2013 Sportster