Yakima roof-top fork-mount (Viper).

Love it. I can install it in about 8 minutes, and remove it in about 4 minutes. Loads in seconds and is held VERY securely.

You do need to take the front wheel off. Not a big deal for me but many don't like it.

Yakima and Tule both make good stuff; my suggestion is see what local shops (LBS, large sporting good stores, etc) are carrying and buy from them.

Bloody things are pricey but I bought mine 10+ years ago and it is still in excellent shape. I don't leave it on the car often since it is so easy to install/remove. It does whistle a bit and the added drag doesn't help the aerodynamics, so off it goes when I don't have the bike on it.

The fellow across the street from me has Yakima stuff that has been on his car for years; he likes his too.

We are fortunate to have several very good choices.

-Tom in SoCal