Make your bike faster
The Trek RSL Aero Water Bottle and Cage is designed for the Madone Gen 8 and proven to make your race bike — even from other top brands — faster. The system is UCI compliant and the cage also holds round bottles making it the ultimate hydration system for your bike.

• The fast and functional RSL Aero Water Bottle and Cage makes your bike faster and keeps you hydrated.
• Tested 1.8 watts faster at 22 mph on the Madone Gen 8 compared to standard round bottles
• Tested faster on other race bikes in our aerodynamic modeling system
• RSL Aero Bottle Cage securely holds the RSL Aero Water Bottle and standard round water bottles
• UCI compliant to ensure safety at all levels of competition
• RSL Aero Water bottle is USDA approved and free of BPAs and phthalates
• Bottle and cap are dishwasher safe and recyclable