KTM 125 DUKE 18 MOT pass rate and common failures
KTM 125 DUKE 18 motorcycles pass the MOT 69.66% of the time, measured across 323 tests in the DVSA record. A further 11.46% passed only after a defect was put right at the test station.
What to check before the MOT
Built from this model's own failure record, not general advice.
- Start with missing - it accounts for 60.7% of failed tests on this model.
- Then check has a serious fluid leak and not working, the next two most common reasons.
- The most common advisory is excessively loose (7.1% of all tests) - not a failure, but money you will spend sooner or later.
- Average recorded mileage at test is 11,952 miles, which is the number to compare any advert against.
Pass rate by age
A single pass rate hides the most useful thing in this data: how the same model behaves at three years old and at fifteen.
| Age at test | Pass rate | Tests | |
|---|---|---|---|
| 6-10 years | 69.5% | 318 |
Why the KTM 125 DUKE 18 fails
Share of failed tests on this model where the item was recorded. One test can fail on several items, so the column does not add up to 100%.
| # | Item | Of failures | Tests | |
|---|---|---|---|---|
| 1 | Missing | 60.7% | 37 | |
| 2 | Has a serious fluid leak | 24.6% | 15 | |
| 3 | Not working | 24.6% | 15 | |
| 4 | Excessively loose | 21.3% | 13 | |
| 5 | Flashing more than 120 times a minute | 21.3% | 13 | |
| 6 | Excessively binding | 16.4% | 10 | |
| 7 | Inoperative in the case of a single lamp or all lamps | 13.1% | 8 | |
| 8 | Indicates excessive fluctuation of brake effort | 9.8% | 6 | |
| 9 | Worn to excess | 9.8% | 6 | |
| 10 | Does not conform to the specified requirements | 6.6% | 4 |
Most common advisories
Not a failure and not a legal requirement to fix - but an advisory that repeats year after year is money the next owner spends.
| # | Item | Of all tests | Tests | |
|---|---|---|---|---|
| 1 | Excessively loose | 7.1% | 23 | |
| 2 | Tread depth is below minimum requirements of 1.0mm | 6.8% | 22 | |
| 3 | Noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition | 6.5% | 21 | |
| 4 | Has a serious fluid leak | 5.6% | 18 | |
| 5 | Excessively binding | 5.3% | 17 | |
| 6 | Indicates excessive fluctuation of brake effort | 4.3% | 14 | |
| 7 | Worn to excess | 4% | 13 | |
| 8 | Is so short that the brake cannot be readily applied | 3.1% | 10 | |
| 9 | Inscription illegible | 2.8% | 9 | |
| 10 | Excessively deformed | 2.5% | 8 |
KTM 125 DUKE 18 for sale
No KTM 125 DUKE 18 in stock at the moment - 297 other KTM bikes are advertised.
Similar bikes compared
Models of comparable capacity, so the comparison means something.
| Model | Tests | Pass rate | Avg mileage | |
|---|---|---|---|---|
| Yamaha GPD125-A NMAX 125 · 125cc | 8,762 | 80.8% | 45,039 | |
| Piaggio VESPA 79-210cc · 79-210cc | 8,363 | 85.42% | 11,710 | |
| Honda WW · 125cc | 7,252 | 80.32% | 40,134 | |
| Honda WW 125 A-M · 125cc | 5,011 | 84.06% | 29,846 | |
| Honda GLR · 125cc | 4,737 | 79.99% | 14,642 | |
| Honda CBF 100-125cc · 100-125cc | 3,204 | 77% | 15,203 |
Source: DVSA MOT testing data, 2025 · updated Aug 2026 · licence and method