Aluminum 2-speed holder bulkhead is split from the rear bulkheads to give appropriate flex and optimum traction. The bulkheads have a supplementary mounting place ââ¬â 3 screws instead of 2 ââ¬â even for greater reinforcement associated with the rear layshaft area and enhanced on-power security. The ball-bearing is set up in a composite bushing to get rid of vibration through the engine. The holder is CNC-machined from premium Swiss 7075 T6 aluminum to ensure the lightest & strongest help framework for the 2-speed. Ebony color.