Kawasaki Z400b vs Kawasaki Zzr600: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Kawasaki Z400b
76%
MOT pass rate · 9 vehicles
Kawasaki Zzr600
82%
MOT pass rate · 6,491 vehicles
Verdict: On MOT pass rate the Kawasaki Z400b (76%) and Kawasaki Zzr600 (82%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Kawasaki Z400b | Kawasaki Zzr600 |
|---|---|---|
| MOT pass rate | 76% | 82% ✓ |
| MOT failure rate | 24% | 18% ✓ |
| Faults & advisories per test | 0.3 ✓ | 0.9 |
| Dangerous-fault share | 0% ✓ | 1% |
| Average mileage | 116,356 mi | 37,252 mi |
| Sample size (vehicles) | 9 | 6,491 |
Most common faults
Kawasaki Z400b
- Drive chain slightly loose (6.2.1d)
- Registration plate deteriorated (6.3.1d)
- Tyre worn close to the legal limit (4.1.3(ii))
- Front position lamp does not illuminate immediately when switched on (1.1.3a)
- Rear position lamp does not illuminate immediately when it is switched on (1.1.3a)
- front brake lever has little reserve travel
Kawasaki Zzr600
- Front Tyre worn close to the legal limit (4.1.3(ii))
- Rear Tyre worn close to the legal limit (4.1.3(ii))
- Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d)
- Drive chain slightly loose (6.2.1d)
- Rear Brake pad(s) close to minimum limit (3.2.A1f(i))
- Drive chain worn but not considered excessive (6.2.1e)
Reliability FAQ
On MOT pass rate the Kawasaki Z400b (76%) and Kawasaki Zzr600 (82%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Kawasaki Z400b report Full Kawasaki Zzr600 report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.