The previous generation models were dropped from the line-up last year but the Euro 5 399cc engine is all new.
Dave Willis said: “They were very popular motorbikes as a stepping stone to a bigger bike, for commuting and with training schools.”
Power comes from a new 45PS, liquid-cooled parallel twin engine, so it can be ridden on an A2 licence, with an assist and slipper clutch.
The compact, lightweight engine’s size is on par with a 250cc unit while its smooth, predictable responses makes control easier.
The chassis is also new with more rigid 41mm diameter front forks delivering better suspension action and contributing to the predictable handling.
The Ninja 400 has twin, slim LED headlights and the Z400’s headlamp is also LED.
A slim 785mm seat height means the 400 will appeal to small riders and adds to the novice-friendly riding position.
The Z400 is finished in Candy Lime Green and Metallic Spark Black or Pearl Robotic White and Metallic Matte Gray.
The Ninja 400 comes in Lime Green and Ebony for the Kawasaki Racing Team edition or Metallic and Matt Carbon Gray.
The Z400 weighs 167kg, the Ninja a kilo more, making them the lightest twins in their class.
Pricing is yet to be confirmed but expect around £6,000 for the ‘Zed’ and £6,250 for the Ninja 400.
We will be allocated four bikes, one in each colour scheme, which should arrive in the showroom from mid-August.
Find more about the new Kawasaki Z400 at orwell.co.uk/kawasaki/new-kawasaki-motorcycle-range/supernaked/z400
Check out the Ninja 400 at orwell.co.uk/kawasaki/new-kawasaki-motorcycle-range/supersport-and-sports/2022-ninja-400