YAMAHA RS125
Pass rate over time
The RS125's first-time pass rate has risen 7.6 points since 2006, 64.3% to 71.9%.
Pass rate by mileage
A low-mileage RS125 passes first time 74.7% of the time; by 30k that's 83.0%.
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 RS125
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
89 | 41.8 |
| steering and suspension |
|
33 | 15.5 |
| brakes |
|
28 | 13.1 |
| tyres and wheels |
|
17 | 8 |
| drive system |
|
14 | 6.6 |
| body and structure |
|
10 | 4.7 |
| fuel and exhaust |
|
8 | 3.8 |
| structure and attachments |
|
6 | 2.8 |
| Items Not Tested |
|
4 | 1.9 |
| lamps and reflectors |
|
4 | 1.9 |
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 RS125 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 RS125.
Pass rate by registration year
Best year to buy used: 1978 (74.1% pass). Weakest: 1979 (68.6%).
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.