The Specialized S-Works Carbon Rib Cage III is 100% Carbon, 100% AERO. Super-low bottle position improves the aerodynamic profile and 100% FACT carbon fiber construction.
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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.