XRAY has released their new XB4 Aluminum C-hubs with pre-set 12°, CNC-machined from premium Swiss 7075 T6 aluminum. Additionally black coated and laser engraved. These are designed and recommended for use in high-traction conditions. They increase steering out of the corner, and make the car more stable going into corners. Roll center position can be easily and quickly adjusted by inserting different thickness of shims on the top of the caster block between the block and the vertical ball stud.The caster blocks feature large openings for quicker & easier assembly/disassembly of the CVDs. The entire CVD assembly can be easily inserted/removed through the C-hub without the need for disassembly. The large openings also prevent collision of the CVD with the C-hub in serious crashes.