RCShox Slipper eliminator for the Serpent XRay XB4 4wd buggy! This is for the popular 13.5 class where a slipper is not needed and less rotating mass equals greater performance. The kit is 16g lighter than stock but since most of the weight is removed towards the outside you get faster acceleration, cooler motor temps and much better braking. A must have for stock and 13.5 classes. Only available in 76t.