[alanmcorcoran]

I saw some bikes with spikes (for ice?) somewhere, but I can't remember where I saw 'em. Was probably Colorado. Might have been Tahoe. However I don't think they had the skis. I'm kind of surprised this works - it would seem that once your rear wheel slid out the outrigger wouldn't do you much good, but obviously it does. I'm guessing the thing handles like a snowmobile with a higher center of gravity. Probably not recommended for off-road - I could see getting stuck in the deep stuff pretty easily.

I wonder what happens if you dig one of those skis into something on one side only? Over the bars?

What is ADV? All Drive Vehicle? Is it a brand name?