Photo: AVMOTO, CC BY-SA 4.0
Yamaha
Ybr125
2,553 MOT tests analysed. lands in the middle of the pack — here's where Ybr125s pass, fail, and end up on the retest sheet.
That's 6.1 points below the UK fleet average across our 1,984 tracked models — buyers should expect more first-time fails than the typical UK car.
Pass
71.4%
Pass-after-fix
11.4%
Fail
16.3%
Avg miles
18,718
Pass + Pass-after-fix + Fail = 100%
This model's production run straddles the January 2006 Euro 4 cutoff. Individual cars vary — check your registration plate on the government's ULEZ checker. Daily charges if driven in the zone: London £12.50 · Birmingham £8.00 .
The picture
Ybr125: middle-of-the-pack on first-time pass
Across 2,241 MOT tests, the Ybr125 returns 72.7% first-time pass — below the UK fleet average. The single most-logged Major fail is a non-functioning shock absorber. Transmission belt, chain and tyre tread under the limit round out the top three. Average tested mileage sits at 18,661, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
Top ten reasons for rejection.
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- 01
A shock absorber not functioning or leaking severely
46 occurrences · 1.8% of tests
- 02
A transmission belt, chain, sprocket or pulley excessively loose or worn
37 occurrences · 1.4% of tests
- 03
A headlamp missing, inoperative or more than ½ not functioning in the case of LED
35 occurrences · 1.4% of tests
- 04
Projected beam image is obviously incorrect
33 occurrences · 1.3% of tests
- 05
A lamp missing or inoperative
32 occurrences · 1.3% of tests
- 06
Tyre tread depth not in accordance with the requirements
30 occurrences · 1.2% of tests
- 07
A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
26 occurrences · 1.0% of tests
- 08
Significant brake effort recorded with no brake applied indicating a binding brake
26 occurrences · 1.0% of tests
- 09
A headlamp missing, inoperative or more than ½ not functioning in the case of LED
24 occurrences · 0.9% of tests
- 10
Exhaust system leaking or insecure
23 occurrences · 0.9% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
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Buying or keeping a Ybr125?
Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own a Ybr125 and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.