The haibike sduro fatsix 60 electric fat bike 2017 is designed for riding a wide variety of terrain with a tyre width of 4 inches its wide contact point makes it ideal for finding traction on rough or extremely loose surfaces like gravel snow or sand whilst still being loads of fun out on the trails with a sram nx 11 speed drivetrain the sduro fatsix 60 excels both in terms of climbing and descending utilising a 11 42t cassette at the back to provide a wide gear range a rocksh