AS3 TOP YOKE STEERING STEM NUT BLACK - YAMAHA YZF 600 R6 99-18 YZF 1000 R1 98-18. AS3 Performance Top Yoke Steering Stem Nut to fit Yamaha YZF 600 R6, YZF 1000 R1. AS3 Performance stem nuts are manufactured from 6061 billet aluminium and are a great upgrade from the OEM stem nuts, they weigh only 21 grams and have a smooth anodized finish to match the rest of our range of CNC machined hard parts.
