Does anyone know whether there's an option that will work with the original oval drops on a S5? I know Giant make a clip-on for their SLR drops with an oval clamp. Just not sure if the profile is close enough for the clamp to work on the Cervelo bars. I was also looking at the 3T Clip On Pro which are made to work with 3T aero drops. I couldn't find any info that would tell me how wide the clamp is in order to work out whether the Cervelo bars could work with a narrow stem.