Yaiba Racing have released a some new aluminium option parts for the Kyosho RB6. First up is this rear upper bulkhead which allows you to attached 12mm big bore shocks. With this new part you don’t need to add spacers between the shock tower and the pivot ball, giving improved efficiency. A new steering rack gives a more direct steering feel and works best with the aluminium steering bell crank. Both parts significantly improving strength and durability.