This kit from Cervelo provides all the base parts and fitments you require to safely an securely mount aerobar extensions on your S5 bicycle with AB08 Carbon Aero Road Handlebars, which are used on the modular S5 bar-stem system from 2019-2022. Please note that the extensions themselves are not included, but you can use almost any 22.2mm extensions available: short, flat, J-bend, ski, etc.

You receive the base mounts, rest plates, arm pads, and all the stainless steel hardware you will need. The plate system allows for various angle set-ups for optimal positioning and comfort. Now you can maximize your S5 aero road bike's AB08 handlebar as a time-trial option, or for shorter triathlons. The system can be removed when not needed.