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Kawasaki

Z400

The Z400 is the naked twin to the Ninja 400, sharing the same 399cc engine and 364-lb chassis in a more upright street fighter stance — discontinued in the US after 2023, but used supply at $3,500–$4,800 makes it the lowest-cost path to proven beginner-friendly parallel-twin performance. An honest beginner-to-intermediate bike that most riders will eventually outgrow, but not quickly.

CategoryNaked
Used range$3,500–$4,800
Open recalls0
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399cc parallel twin
Engine
364 lbs
Weight
30.9 in
Seat
$5,399
MSRP
Used range$3,500–$4,800

Too few clean used examples are moving yet to price this one confidently.

Used price, ownership cost, and rider-fit estimates are editorial. Verify before purchasing.

Rider fit

Best-use signals

Beginner10/10
Commuting9/10
Touring2/10
Off-road0/10
Two-up2/10
Sport4/10

Buying intel

Known strengths

  • Lightest entry in Kawasaki's Z naked lineup at 364 lb, pairing a punchy 399cc parallel-twin with a trellis frame for agile city riding
  • Assist-and-slipper clutch and low 30.9-inch seat height make it one of the most accessible nakeds for new riders
  • The unfaired upright sibling to the Ninja 400 shares the same excellent chassis and engine in a more affordable, commuter-friendly package

Buying intel

Common issues

  • Discontinued after 2023 in the US in favor of the Z500; remaining inventory is limited
  • Non-adjustable suspension and modest 44 hp output limit track capability

Buying intel

Inspection checklist

No notes are in the MVP data yet.

Buying intel

Maintenance notes

  • Valve clearance inspection recommended every 15,000 miles

Years to buy

Best years

No best-year signal has been added yet.

Years to inspect

Watch list

  • 2023
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    The Z400 is the naked twin to the Ninja 400, sharing the same 399cc engine and 364-lb chassis in a more upright street fighter stance — discontinued in the US after 2023, but used supply at $3,500–$4,800 makes it the lowest-cost path to proven beginner-friendly parallel-twin performance. An honest beginner-to-intermediate bike that most riders will eventually outgrow, but not quickly.

Recall snapshot

0 open campaigns

Last checked May 24, 2026 through MANUAL.

Configuration

2023 ABS

naked motorcycle with 399cc parallel twin.