Increase the durability of your rig and add weight in one of the most ideal locations. These brass knuckles weigh 12.5g each and lower your rig’s center of gravity while also placing weight far out from the center of the chassis. This increases side hill capabilities while increasing the overall stability of your rig. Fit AX24 and SCX24. Please note a left and a right knuckle are included. Please note orientation when installing knuckles and use supplied ball studs.