All Supercross SLT, PRO, and PRO LT Forks come with a welded-in star nut and Alloy Supercross Top Cap/Spacer stock that uses a 28mm open-end wrench.
Below, you can purchase an alternative color top cap to change the look of your ride, or grab one of the new lighter Flush Top Caps which use a 6mm Allen Wrench. However you want to set up your forks, we want to give you the option to do it your way.