Graves Motorsports 3 in 1 Socket is a direct fitment for the steering castle nut on the 98-14 Yamaha R1. This 3/8 inch drive socket is made from 7075 Aluminum and is anodized black. It fits the steering head castle nut, swing-arm pivot castle nut, and the swing-arm pivot on the 2009-2014 Yamaha R1. This tool is used by Team Graves Yamaha to ensure proper torque specifications are maintained on the Team Graves Yamaha R1 American Superbikes. This product is Manufactured in the U.S.A. Fitment: Yamaha R1 1998-2014