Photo: AVMOTO, CC BY-SA 4.0
Yamaha
Dt125
1,829 MOT tests analysed. lands in the middle of the pack — here's where Dt125s pass, fail, and end up on the retest sheet.
That's 1.3 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
78.8%
Pass-after-fix
9.2%
Fail
11.1%
Avg miles
18,983
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
Dt125: middle-of-the-pack on first-time pass
Across 1,267 MOT tests, the Dt125 returns 78.8% first-time pass — roughly in line with the UK fleet average. The single most-logged Major fail is a missing rear reflector. Lamp missing or inoperative and headlamp aim out of spec round out the top three. Average tested mileage sits at 19,425, 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.
Filter failures:
Hide categories
Tick a category to hide it from rankings sitewide. Saved in this browser only.
- 01
Rate of flashing not between 60 and 120 times per minute
33 occurrences · 1.8% of tests
- 02
A lamp missing or inoperative
20 occurrences · 1.1% of tests
- 03
Reflector missing or reflecting white to the rear
19 occurrences · 1.0% of tests
- 04
A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
15 occurrences · 0.8% of tests
- 05
A footrest missing or insecure
14 occurrences · 0.8% of tests
- 06
A wheel bearing with excessive play
13 occurrences · 0.7% of tests
- 07
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
13 occurrences · 0.7% of tests
- 08
A spoke missing, cracked, excessively loose, bent or corroded
12 occurrences · 0.7% of tests
- 09
Projected beam image is obviously incorrect
11 occurrences · 0.6% of tests
- 10
A transmission belt, chain, sprocket or pulley excessively loose or worn
11 occurrences · 0.6% 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.
Try the calculator
Build your own retest budget.
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 Dt125?
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 Dt125 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.