FSA Vision Metron Rear Hydration SystemThe FSA Vision Metron Rear Hydration System fits on the back of your saddle with a full carbon set up with high grip to fit two cages. Compatible with traditional and snub-nose saddles. The tension is adjustable to size to your water bottles as well as a CO2 pump, accessory bag, and tie strap combinations. There are 3 positions (40 degrees) of adjustment on the saddle rail. There are 5 positions (40 degrees) of bottle cage tilt adjustability. The frame is made of alloy with corrosion resistant hardware. Included are Quiver Saddle Mount and two High Grip Cages. Weigh only 212 grams.840031003041