Lightweight yet ultra-strong front pivot ball steering block molded from specially formulated difficult graphite composite material. Graphite material provides more responsive feel specially on bumpy tracks. Means free suspension motion in dusty conditions. Fits larger outside 8x16x5mm ball-bearings for increased dependability and life-span. Appropriate most track conditions, especially for high- and very-high-traction songs. Fits XB8, XB8E, XT8, XT8E