The Yamaha Kodiak 450 ATV has been updated for 2021. Diff lock is now standard on all electric power steering (EPS) models. The addition of the diff lock will enable the operator to lock in power to all four wheels for better off-road traction.

All Kodiak models will now be specified with the Ultramatic transmission which Yamaha says maintains tension on the drive belt to provide a consistent throttle response. The constantly variable transmission (CVT) provides the correct gear ratio as the ATV speeds up and also acts to provide engine breaking when the ATV is going downhill. The operator is also able to automatically switch between 2WD, 4WD and diff lock settings with the push of a button.