Overview HSF / AERIA hydration system is designed to seamlessly integrate with the Aeria Ultimate Stem (Stem is required for installation) - combine with the Aeria Ultimate aerobar this system provides a fully integrated front end âsuper bikeâ solution for any bike. This BTA system features the race proven âno splashâ fill port, a straw magnet mount for streamlined aero over the top of the system, a bite valve for fluid control and a removable computer mount. Tech Specs Construction: BPA-Free, Foodsafe HDPE Bottle Colors: Matte Black Capacity: 30oz (857ml) Only Compatible With: Profile Design Aeria Ultimate Stem(70mm or 100mm - ONLY) or with the use of a 1/Seventen stemand 1/Seventeen Stem HSF Aeria Faceplate Weight:Â420g Manual HSF Aeria Installation Instructions