Aeria HSF 1/Seventeen Stem Faceplate

The HSF Stem Capallows the Profile Design HSF/Aeria bottle to befitted to our standard 1/Seventeen stem.The HSF Aeria bottle smoothes airflow onto the frame, offering the chance to lower aero dragwhile increasing hydration carrying capacity. To this point it has required a specific stem – the newHSF Stem cap increases the options for access to the HSF Aeria technology.The HSF Stem cap is only compatible with the 1/Seventeen stem (not the 1/Seven) and the HSFAeria bottle. It is recommended to be used with stem lengths of 90mm and above in order to avoidinterference with the front brake.