Aluminum top clamps the X4 bulkheads. Machined to house the aluminium caster inserts. Mounts concerning the reduced bulkheads with particularly made centering lugs, for optimum persistence in regards to the caster environment, alongside basic maneuvering. The most truly effective clamps work 1mm milled grooves the ball-bearing hubs. The surface of the clamps happen milled to eradicate unneeded item to reduce their size and fat. The screws arranged from base the caster inserts capture the inserts in top clamps to prevent them from coming free while servicing the car. The screws also behave as the utmost effective arms pivot ball mounts, reducing exactly how many elements in set up and reducing fat. The surface of the clamps and caster inserts are manufactured from premium Swiss 7075 T6 aluminum and black colored colored colored anodized.