Pass rate over time
The ETZ250's first-time pass rate has risen 5.6 points since 2005, 83.3% to 88.9%.
Pass rate by mileage
A low-mileage ETZ250 passes first time 81.1% of the time; by 50k that's 94.1%.
First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.
What fails on a ETZ250
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lighting and signalling |
|
94 | 33.6 | 0.6× |
| brakes |
|
65 | 23.2 | 0.4× |
| steering and suspension |
|
50 | 17.9 | 0.6× |
| tyres and wheels |
|
32 | 11.4 | 0.6× |
| body and structure |
|
9 | 3.2 | 0.6× |
| tyres |
|
8 | 2.9 | 0.4× |
| lamps and reflectors |
|
7 | 2.5 | 0.1× |
| reg plates and vin |
|
6 | 2.1 | 0.4× |
| fuel and exhaust |
|
5 | 1.8 | 0.2× |
| suspension |
|
4 | 1.4 | 0.2× |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.
How rivals compare
On first-time pass rate the ETZ250 beats 4 of its 4 closest rivals (YAMAHA YP250, YAMAHA WR250F, HONDA XR250).
Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the ETZ250.
Pass rate by registration year
Best year to buy used: 1984 (91.8% pass). Weakest: 1981 (80.3%).
First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.
MZ ETZ250 FAQ
Is the MZ ETZ250 reliable?
The MZ ETZ250 is about average for its class: 86.6% of its 2,568 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2016 of 5426 models.
What does a ETZ250 fail its MOT on most?
lighting and signalling — 34% of all defects recorded against failed ETZ250 tests.
What is the best year of ETZ250 to buy used?
By first-time pass rate, 1984-registered examples do best (91.8%) and 1981 worst (80.3%). Condition and history still trump the year.
How many miles will a ETZ250 last?
The median ETZ250 shows 27,080 miles at test, and examples around 50k miles still pass 94.1% of the time — mileage alone rarely kills one.