CNC-machined motor-side RIGHT back bulkhead made from premium extra-strong Swiss 7075 T6 aluminum, black colored coated for very long life and trendy appearance. Strategically machined for reduced weight while keeping energy. The tiny rear bulkheads including the upper bulkhead clamps are notably lower and lighter, offering ultra-low CG for the rear suspension system. Designed for extremely swift & effortless ride height adjustment. No more hassle to dismount the vehicle to change the trunk ride height! The included ride height shims are placed between the bulkhead and top bulkhead clamp to alter ride height: smart & simple. The latest method for ride height modification enables ultra-fine adjustment by 0.25mm increments, in comparison to the previous 0.5mm increments making use of eccentric bushings. Must be used with remaining back bulkhead #373025.