Kawasaki Zx vs Kawasaki Er5: MOT reliability compared
Updated 05 September 2026.
11.0%
Kawasaki Zx MOT failure rate, 7.8 pts lower than Kawasaki Er5
Kawasaki Zx is the more reliable MOT performer: 11.0% of Kawasaki Zx MOTs fail versus 18.8% for Kawasaki Er5, a 7.8 point gap.
| Metric | Kawasaki Zx | Kawasaki Er5 |
|---|---|---|
| MOT failure rate | 11.0% | 18.8% |
| Tests analysed | 208,941 | 66,313 |
| Most common failure | Lamps & electrical (21.6%) | Brakes (30.1%) |
Questions and answers
Which is more reliable, Kawasaki Zx or Kawasaki Er5?
Kawasaki Zx is the more reliable MOT performer: 11.0% of Kawasaki Zx MOTs fail versus 18.8% for Kawasaki Er5, a 7.8 point gap.
What is the MOT failure rate of the Kawasaki Zx?
11.0% of Kawasaki Zx MOT tests result in a failure, from 208,941 tests.
What is the MOT failure rate of the Kawasaki Er5?
18.8% of Kawasaki Er5 MOT tests result in a failure, from 66,313 tests.