ZONTES ZT 125-3A TIGER
The pass rate is the MOT first-time pass: a roadworthiness check of the items an MOT covers (brakes, lights, tyres, steering, structure, emissions), not a full mechanical inspection of engine or gearbox internals. It is a reliability signal, not a complete measure of mechanical reliability. What this measures.
“vs expected” adjusts for age, mileage and test class, so a cherished classic and a hard-used commuter are compared fairly. How this works.
Pass rate over time
The ZT 125-3A TIGER's first-time pass rate has fallen 11.1 points since 2015, 62.7% to 51.6%.
Pass rate by mileage
A low-mileage ZT 125-3A TIGER passes first time 68.2% of the time; by 20k that's 38.9%.
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 ZT 125-3A TIGER
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| brakes |
|
69 | 18.8 |
| lighting and signalling |
|
64 | 17.4 |
| lamps and reflectors |
|
57 | 15.5 |
| steering and suspension |
|
50 | 13.6 |
| drive system |
|
37 | 10.1 |
| structure and attachments |
|
33 | 9 |
| suspension |
|
19 | 5.2 |
| body and structure |
|
17 | 4.6 |
| steering |
|
15 | 4.1 |
| tyres |
|
7 | 1.9 |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.
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More ZONTES models
Pass rate by registration year
Best year to buy used: 2012 (60.0% pass). Weakest: 2013 (57.1%).
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.
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