Aerodynamic dual-bottle BTA hydration system that features a dynamic, multi-position computer mount to accommodate your changing needs. Raise the computer mount up to tuck in a refill bottle for race day, or lower it down for a standard bottle while maintaining the optimal view for training days. Telescoping Garmin mount features on-the-go tilt adjust to avoid glare. 16-layer carbon fiber plate ensures a no-rattle, no-bounce ride. Zero-leak design with a sealed viewing window to easily monitor liquid levels, and a leak-free Dolphin Breather Valve that lets air in—but doesn’t let water out. - Capacity: 26oz (768 mL) - Construction (Versa Mounting Plate): 16-layer unidirectional carbon fiber - Construction (Cage): Carbon Torpedo Cage - Construction (Computer Mount): Nylon Composite - Construction (Bottle): Lead free, BPA-Free and HDPE food-safe certified bottle - Construction (Brackets): Nylon composite with Velcro straps coated with no-slip extension grip - Adjustment Width: 75-150mm - Weight: 8.4oz (240g)

Wind-tunnel testing shows that a bicycle with XLAB's Aero TT Cage and Bottle System on it is 25% more aero than with a round bottle, meaning it will shave up to 20 seconds off a 40K bike leg or time trial. The high grip cage holds the bottle securely, and the non-slip surface with an easy-grip groove makes it easy for you to get the bottle out. The included XLAB 20-ounce aero bottle is BPA-free. - NEW! Stealth black bottle color. Match your black Torpedo Bottle or kit-match your bike! - Carbon cage securely grips bottle - Save up to 64 seconds on Full Race distance - 50% Less Drag than round bottles - Special XLAB Hi-Grip Deep Pocket carbon cage

Replacement Spare Bottle for Aero TT System - BPA free - High grip sides - Aero-weenies rejoice with 50% less drag than round bottles - Ideal 20oz (590ml) capacity for a gel/water mix - Save up to 64 seconds on Full Race distance - 20 oz (590mL)