XRAY have introduced new soft and ribbed shock membranes for the XB8, XT8 and GTX8. These shock membranes are molded from softer transparent rubber. They offer less rebound and are better for bumpy tracks and high speed tracks. The membranes feature an internal bottom ribs to maintain shape while the specially-formulated rubber material ensures equal damping characteristics from the beginning of the race to the end, even after extreme operation. Available in set of four.