What's the lightest tubular rim on the market today?

I was just going through my stash and found an unused 36h Mavic Record du Monde de l'heure. It weighs 262g on my digi-scale. I've had it since the mid '70s.

Lightest box section that I remember was/is commonly available; Mavic Gel280's. There not 262g's though, probably nearing 300g as the die is worn now.

Best choice is to look at the parts database on weightweenies. LOTS of information there

I did a pair of Reynolds KOM rims that weighed 240g each.

-Eric