Motion Pro Fork Cap Socket (Single/Harley 39mm) Motion Pro is dedicated to producing the most versatile, unique and durable products for professional and home use. Motion Pro tools are designed to be simple to use, yet durable enough to withstand the harshest conditions. One of their goals is to offer tools of convenience. Do it right the first time with Motion Pro Tools.For removing the fork cap and compression cartridge (most models).Made from billet 6061 T-6 aluminum.Anodized finish with laser engraving.Note: Always wear safety glasses and refer to the fork manufacturer Fits most Big Twin and Sportster models.