yeah then you have a bike you can steer but not move ….
i built
a half fat last year with a larry upfront and a 2.5 out back it struggled in deep (6 inches + ) snow – i thought it was just a limitation even for fat tires ….
when my hub arrived i built a full fat sandman and rode the same depth of snow like it was a tarmac road really …
half fat is fine for general trail riding but for snow riding its pretty much down there with normal tires for uselessness – going narrow would be a better option imho …