Product Review

The patented SpeedfilTM A2 system works with any Specialized thread compatible water bottle in both 21 fl oz. (621 ml) and 24 fl oz. (710 ml) sizes. The wind tunnel developed A2 is designed to be used with triathlon/TT aerobars. The A2 achieves its superior aerodynamics by it's key location within the riders cockpit. The athlete's arms shield the device, thus becoming invisible to the wind.