andrew_s
Legendary Member
It's usually mostly tears rather than snot.My nose can be totally clear for days then, as soon as I get on a bike in cool or cold weather - GUSH! It's like someone has turned a tap on.
The blast of cold air on the eyes makes them water a lot, and after a few minutes the lacrimal ducts open up and the tears drain down into the top of your nose rather than run down your face.
The best solution is fairly close fitting and wrap round cycling glasses to keep the wind off.