Winter bike / Snow bike thread

But to me it looks like he's running a WI dual freewheel with a very vintage Campagnolo/Suntour rear mech. Just seems strange but I guess if that's what works... I'm afraid much of the fatbike technology is beyond me, I still ride a 26 inch mountain bike!

You need really low gearing for riding such soft muck. As I understand it the old rear mech copes with this gearing well, and the freewheel is easier to maintain than striping your hub down every day.

I would say that its very clever, as when the freewheel dies (due to salt, sand, snow etc.) your wheel is still sound. So you can easily carry an extra, and replace cheaply. Those freewheels are far from cheap though.