Weird. I sweat buckets when I ride around 85F, and I don't have a problem with sweat dripping into my eyes.

I wear a Fox Flux helmet, which is big and meant for mountain biking. The pads on the helmet absorb most of the sweat. Sweat that trickles down my forehead is deflected by the eyebrows. The wind rushing past my face does the rest.

Hah! You gotta go faster!