YAMAHA DTR125
Pass rate over time
The DTR125's first-time pass rate has fallen 15.5 points since 2006, 80.0% to 64.5%.
Pass rate by mileage
A low-mileage DTR125 passes first time 63.9% of the time; by 30k that's 60.0%.
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 DTR125
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
111 | 35.8 |
| steering and suspension |
|
50 | 16.1 |
| brakes |
|
49 | 15.8 |
| tyres and wheels |
|
30 | 9.7 |
| lamps and reflectors |
|
23 | 7.4 |
| drive system |
|
22 | 7.1 |
| body and structure |
|
12 | 3.9 |
| fuel and exhaust |
|
5 | 1.6 |
| driving controls |
|
4 | 1.3 |
| reg plates and vin |
|
4 | 1.3 |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.
How rivals compare
On first-time pass rate the DTR125 beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).
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 DTR125.
Pass rate by registration year
Best year to buy used: 1990 (68.9% pass). Weakest: 1990 (68.9%).
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.