Upgrade your HPI Cyber 10B with this Adjustable Slipper Clutch Set. Adding a slipper clutch takes stress off of the drivetrain, especially important for extreme track conditions with high output motors. It's also adjustable so you can control the amount of launch power coming out of corners, giving you faster lap times on slippery track surfaces. Each package contains everything needed to convert the Cyber 10B to an adjustable slipper clutch set-up.