The new S-Works Carbon Rib Cage III keeps the 100% FACT carbon fiber construction of yesteryear, but it ups bottle retention for super rough roads. The split design also provides pre-load to hold bottles securely, while makimg bottle entry as easy as possible.The S-Works Carbon Rib Cage III uses a split design to strike the perfect balance between bottle hold and easy of entry/exit. It also happens to look drop-dead sexy.Key FeaturesFACT carbon construction creates a splendid fusion of strength, optimal botle retention, and light overall weight.Super-low bottle position improves the aerodynamic profile.Tuned compression design provides secure bottle retention with easy in-and-out accessibility.Weight: 24g