These Xray slipper clutch outdrive pads are the soft compound version designed for the XB4 platform. The soft rating is suited for lower-grip surfaces where a more compliant slipper engagement helps protect the drivetrain. Sold as a pair, these are a factory Xray replacement for maintaining consistent slipper clutch performance. Features: Soft compound for low-grip surface tuning Designed for the Xray XB4 platform Sold as a pair Slipper clutch drivetrain component 7/7/26 cs