TOP END KIT ARMORGLIDE BOX FRG 97.00/STD 12.5:1 YAMWiseco's complete top end Piston Kits are offered for nearly every popular motorcycle application. These kits contain everything you need to complete your rebuild the right way, the first time. High quality parts specifically chosen by us to match our forged pistons are included in this kit for easy one stop shopping. Each piston is built from race proven designs that are chosen by the top race teams in all forms of racing including Supercross,