Think about it - if you had to guess, who would win in a race between someone on a mountain bike or someone on a snowboard in a race to the bottom of a mountain?
Of course, it all depends on the cyclist and the snowboarder in question, as well as the course chosen, but it really is a tricky one - who do you reckon would win?
Absurdly popular German game show "Wetten, dass..?" - best translated as "Wanna bet on that?" - has gone ahead and answered that questiom with this highly awesome video we've got for you below.
It's like Top Gear, except instead of Jeremy Clarkson on a boat and Richard Hammond in a hot air balloon, it's Austrian extreme cyclist Andreas Brewi up against Swiss snowboarder Gian Simmen. Oh, and it's actually worth doing/watching.
As for who actually wins, well, you'll have to wait and see - but know this: it's a damn good watch, which, arguably, is all that matters...