Make your bike fasterThe Trek RSL Aero Water Bottle and Cage is designed for the Madone Gen 8 and proven to make your race bikeeven from other top brandsfaster. The system is UCI-compliant and the cage also holds round bottles making it the ultimate hydration system for your bike.Product detailsTested 1.8 watts faster at 22 mph on the Madone Gen 8 compared to standard round bottlesTested faster on other race bikes in our aerodynamic modelling systemRSL Aero Bottle Cage securely holds the RSL Aero Water Bottle and standard round water bottlesUCI-compliant to ensure safety at all levels of competitionThe RSL Aero Water bottle is USDA approved and free of BPAs and phthalatesBottle and cap are dishwasher-safe and recyclableThe RSL Aero Bottle Cage is constructed from strong and lightweight OCLV CarbonIncludes mounting hardware to install the RSL Aero Bottle CageEvery watts mattersThe RSL Aero Water Bottle and Cage is the hydration vessel of choice for team Lidl-Trek, offering 1.8 wat