This is the Cervelo factory adapter kit to run aero extensions on your S5. This was a very difficult kit to source as it is rarely found in stock. Price is firm and includes shipping and paypal fees. I was using it on my 2024 model year S5. Includes all the original parts, comes assembled as pictured. Only used for two races and a couple days getting them set up.
More from the manufacturer:
This kit allows you to mount aero bar extensions to the standard bar version of the S5 as well as the V-Stem cockpit. It includes elbow pads, fixing brackets, and all the hardware you need to properly mount your aero bars. Everything is highly adjustable so you can find your ideal riding position regardless of what kind of bars you use. Please note that aero bars are not included in this product. The Cervélo S5 HB14 Bar Extension Mount turns your S5 into even more of an aero weapon.
I’m a new user on slowtwitch, but these are posted on pinkbike too. I’ve been selling stuff there for 10+ yrs without any issues or complaints.