Photo: AVMOTO, CC BY-SA 4.0
Yamaha
Ybr 125
3,242 MOT tests analysed. lands in the middle of the pack — here's where Ybr 125s pass, fail, and end up on the retest sheet.
That's 5.5 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
72.0%
Pass-after-fix
9.4%
Fail
18.3%
Avg miles
19,091
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
Ybr 125: middle-of-the-pack on first-time pass
Across 2,755 MOT tests, the Ybr 125 returns 74.0% first-time pass — below the UK fleet average. The single most-logged Major fail is a non-functioning shock absorber. Tyre tread under the limit and transmission belt, chain round out the top three. Average tested mileage sits at 18,403, 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
65 occurrences · 2.0% of tests
- 02
A transmission belt, chain, sprocket or pulley excessively loose or worn
56 occurrences · 1.7% of tests
- 03
A headlamp missing, inoperative or more than ½ not functioning in the case of LED
54 occurrences · 1.7% of tests
- 04
Tyre tread depth not in accordance with the requirements
50 occurrences · 1.5% of tests
- 05
A lamp missing or inoperative
47 occurrences · 1.4% of tests
- 06
Projected beam image is obviously incorrect
44 occurrences · 1.4% of tests
- 07
A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
44 occurrences · 1.4% of tests
- 08
Headlamp aim unable to be tested
39 occurrences · 1.2% of tests
- 09
The aim of a headlamp is not within limits laid down in the requirements
38 occurrences · 1.2% of tests
- 10
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
35 occurrences · 1.1% 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 Ybr 125'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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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
Headlight restoration kit
Yellowed lenses fail the light-output test. A restoration kit lifts the haze in an afternoon for £20.
Search Amazon UK
Item 02 · 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
My Motor World · affiliate
Parts & supplies for this fix
Affiliate links — small commission, no extra cost to you.
Click Mechanic · affiliate
Book a mobile mechanic
Affiliate links — small commission, no extra cost to you.
Mobile mechanic · UK-wide
Book a mechanic at your door.
Fixed-price quotes upfront. No garage needed. Click Mechanic sends a vetted local mechanic to you — home, work, or roadside.
Buying or keeping a Ybr 125?
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 Ybr 125 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.