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.
- 01
A shock absorber not functioning or leaking severely
71 occurrences · 3.2% of tests
- 02
A transmission belt, chain, sprocket or pulley excessively loose or worn
46 occurrences · 2.1% of tests
- 03
Tyre tread depth not in accordance with the requirements
44 occurrences · 2.0% of tests
- 04
A headlamp missing, inoperative or more than ½ not functioning in the case of LED
41 occurrences · 1.8% of tests
- 05
Projected beam image is obviously incorrect
30 occurrences · 1.3% of tests
- 06
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
28 occurrences · 1.2% of tests
- 07
Significant brake effort recorded with no brake applied indicating a binding brake
23 occurrences · 1.0% of tests
- 08
A stop lamp(s) remains on when the brakes are released
23 occurrences · 1.0% of tests
- 09
A headlamp missing, inoperative or more than ½ not functioning in the case of LED
22 occurrences · 1.0% of tests
- 10
A lamp missing or inoperative
22 occurrences · 1.0% 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.
Worst-case fix budget · top 2 failures
£70–£175
If every one of this Ybr125's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
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Build your own retest budget.
Tools that pre-empt a retest.
Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.
Item 01 · Amazon UK
Digital tyre-tread depth gauge
Five quid for a gauge beats £150 for a retest. UK MOT minimum is 1.6mm — most testers fail anything below 2mm to be safe.
Search Amazon UK
Item 02 · Amazon UK
Headlight restoration kit
Yellowed lenses fail the light-output test. A restoration kit lifts the haze in an afternoon for £20.
Search Amazon UK
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.