If you thought mountain biking in the snow wasn't a thing, think again! [Vincent Tupin](https://www.youtube.com/channel/UCZoEaFlbZ-ZY4GkiGxWVfmw) and his friends are hitting some beautiful slopes in Switzerland, but not on skis or snowboards — on their bikes! As risky as it may seem, these guys know what they're doing — and we have to admit, it does look pretty fun!