On my Cervelo S5 handlebar,
Computer: Bynavi Air
Light: Bontrager Ion R
Duo mount: Lezyne mount product
Action cam: DJI Osmo Action 5
I settled on this combo.
Since I barely ever ride at night, I don't need
a high-lumen headlight, and since the Cervelo manual doesn't specify
a max mount load either, I built it keeping the combined weight
of all 3 items under 300g.
First time I've ever put together a cockpit while actually weighing everything on a scale