Kill two birds with one stone using the specialized rib cage ii with aero swat tool a great value for money asset to your ride the rib cage ii is designed from the most lightweight durable materials and delivers a super low bottle position for the ultimate in aerodynamics hydration is a key element of any good performance but can cause inconvenience through taking up space and adding weight the easiest way to prevent this is by transporting your bottle on your bike the rib cage ii has bee