my $.02
I think snow is the best place for 3wheelers..well hardtails at least. Growing up we had a YTM200 and it got most of the its use in the winter. But like some guys are saying too much snow and it won't go. Also the revving factor, make sure to keep enough oil in the engine and give it periodic cool down periods if you're revving a lot and not going fast enough for the engine to get enough air flow for cooling.
I'm pretty excited about this winter because I'm back into 3wheelers with my 200s. I also bought an old snowmobile and plan on packing down some trails for the 3 wheeler with it. Anyone ever do that?
Here are some winter pics. The first is about 12-15 years ago on our '84 YTM200. The rest are my brother from last winter on my BW80, jumping the snow bank I plowed up. Some of my best memories are playing in the snow with him.
'84 200s
'86 BW80
'02 CRF450
'89 ZX750R