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- The HSF Stem faceplate allows the Proﬁle Design HSF/Aeria bottle to be fitted to our standard 1/Seventeen stem
- The HSF Aeria bottle smoothes airflow onto the frame, offering the chance to lower aero drag while increasing hydration carrying capacity
- The HSF Stem faceplate was designed to allow more riders to enjoy the speed advantage and convenience of the HSF Aeria bottle system - it is a simple upgrade to turn a normal bike into a superbike
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