Pit Posse PP2709YA Pro Bolt Bolts Metric Assortment Kit Yamaha WR YZ 2003-2017 This 172 piece kit is designed for Yamaha YZ/YZF full size models 2003 to current Despite Yamahas tendency to use oval bushings and over sized flanges on some of their bolts, Pit Posse has you covered. This Pit Posse Pro Yamaha bolt kit will be your go to kit for all of your bolting needs All hardware exceeds OEM specifications