Aluminum lower front LEFT bulkhead CNC-machined from premium lightweight Swiss 7075 T6 aluminum provides improved tightness and flex faculties for better steering traits, despite difficult spec tires. Redesigned to fit the updated composite anti roll club bearing bushings that eradicate the wear associated with bulkhead. The super-lightweight Swiss 7075 T6 aluminum bulkheads have actually a tremendously neat and lightweight design to give the best fat and CG.