The following are the comparison between Yamaha FZ160 Bison and Yamaha V-ixion:
Engine:
FZ160 Bison : Power 14hp max torque 13.6 Nm
V-ixion: Power 16hp max torque 14.5 Nm

Technology:
FZ160 Bison : SOHC
V-ixion: SOHC injection and radiator

Model:
FZ160 Bison : street fighter look adopts FZ6 and FZ1 model
V-ixion: not stree fighter look

Price:
FZ160 Bison is lower than V-ixion