Fat bikes, which have large forks and huge nubby tires, were invented so that Alaskans could commute by bike. However, in the past few years winter biking has turned into a much more recreational activity. Fat bikes have become exceedingly popular in the Midwest where the terrain isn’t too ideal for skiing. Instead, rolling trails and frozen lakes lend themselves nicely to wintertime cycling with fat bikes. Fat bike rentals are popping up in ski towns across the West. From Minneapolis to Jackson Hole, there are a variety of places where you can easily try the sport out for yourself.