CNC-machined LEFT straight back bulkhead for XRAY X1216 created from premium extra-strong Swiss 7075 T6 aluminum, black coated for longer life and trendy appearance. Strategically machined for low fat while keeping energy. Smart pod design allows super-easy motor top access, accommodating brushed or brushless engines. Updated design permits ultra-low straight back suspension system system system CG and very fast & effortless journey height modification. Ride height shims are put between bulkhead and top bulkhead clamp. Is used with right back bulkhead #373013.