Aluminum top clamps the X4 bulkheads. Machined to house the aluminium caster inserts. Mounts regarding the reduced bulkheads with specially made centering lugs, for maximum persistence in regards to the caster setting, alongside basic maneuvering. The top clamps work 1mm milled grooves the ball-bearing hubs. The surface of the clamps happen milled to get rid of unneeded product to reduce their size and fat. The screws arranged from base the caster inserts capture the inserts in top clamps to avoid them from coming free while servicing the auto. The screws also behave as the utmost effective hands pivot ball mounts, reducing just how many elements in put up and reducing fat. The surface of the clamps and caster inserts are produced from premium Swiss 7075 T6 aluminum and black colored colored colored anodized.