X4 paid down bulkhead. Features centering pins for simple make and constant geometry settings. The bulkheads feature a super low anti-roll club mounting spot permitting the anti-roll club wire become placed right in drive shafts to notably reduce steadily the CG. The bulkheads function 1mm milled grooves the ball bearing hubs that relocated the bulkheads 1mm closer to the framework center line from each part. This bulkhead fits forward right component and rear left part. Made out of premium Swiss 7075 T6 aluminum, black colored colored anodized.