X4 reduced bulkhead. Features centering pins for simple set up and constant geometry settings. The bulkheads feature a super low anti-roll club mounting place enabling the anti-roll club wire become placed directly under the drive shafts to significantly reduce the CG. The bulkheads function 1mm milled grooves for the ball bearing hubs that moved the bulkheads 1mm closer to the framework center line from each side. This bulkhead fits front right part and backside left side. Produced from premium Swiss 7075 T6 aluminum, black colored anodized.