The YZ Track Pack contains the hardware that is needed and replaced often on Yamaha\’s. Includes Yamaha style M6 and M8 flange bolts, seat bolts, fork guard bolts, radiator shroud bolts, chain slider bolts, t-nuts, flange nuts and more. Designed for YZ, YZF and WRF models. The YZ Track Pack contains the hardware that is needed and replaced often on Yamaha\’s. Includes Yamaha style M6 and M8 flange bolts, seat bolts, fork guard bolts, radiator shroud bolts, chain slider bolts, t-nuts, flange nuts and more. Designed for YZ, YZF and WRF models.