Harley-Davidson XL 883 N IRON 20 MOT pass rate and common failures
Harley-Davidson XL 883 N IRON 20 motorcycles pass the MOT 92.56% of the time, measured across 215 tests in the DVSA record. A further 4.19% 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 remains on when the brakes are released - it accounts for 57.1% of failed tests on this model.
- Then check does not conform to the specified requirements and less than 1.0 mm thick, the next two most common reasons.
- The most common advisory is noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (24.7% of all tests) - not a failure, but money you will spend sooner or later.
- Average recorded mileage at test is 5,876 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 | |
|---|---|---|---|
| 3-5 years | 92.38% | 210 |
Why the Harley-Davidson XL 883 N IRON 20 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 | Remains on when the brakes are released | 57.1% | 4 | |
| 2 | Does not conform to the specified requirements | 42.9% | 3 | |
| 3 | Less than 1.0 mm thick | 42.9% | 3 | |
| 4 | Missing | 42.9% | 3 | |
| 5 | Inoperative | 28.6% | 2 | |
| 6 | Obviously incorrectly positioned | 28.6% | 2 | |
| 7 | Tread depth is below minimum requirements of 1.0mm | 28.6% | 2 | |
| 8 | Has a serious fluid leak | 14.3% | 1 | |
| 9 | Incorrect | 14.3% | 1 | |
| 10 | Incorrect colour | 14.3% | 1 |
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 | Noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition | 24.7% | 53 | |
| 2 | In such a condition that it is seriously weakened | 1.9% | 4 | |
| 3 | Less than 1.0 mm thick | 1.4% | 3 | |
| 4 | Significantly and obviously worn | 1.4% | 3 | |
| 5 | Tread depth is below minimum requirements of 1.0mm | 1.4% | 3 | |
| 6 | Excessively binding | 0.9% | 2 | |
| 7 | Ferrule excessively corroded | 0.9% | 2 | |
| 8 | Has excessive play | 0.9% | 2 | |
| 9 | Indicates excessive fluctuation of brake effort | 0.9% | 2 | |
| 10 | Inscription illegible | 0.9% | 2 |
Harley-Davidson XL 883 N IRON 20 for sale
No Harley-Davidson XL 883 N IRON 20 in stock at the moment - 48 other Harley-Davidson bikes are advertised.
Similar bikes compared
Models of comparable capacity, so the comparison means something.
| Model | Tests | Pass rate | Avg mileage | |
|---|---|---|---|---|
| Triumph TIGER · 969cc | 16,144 | 91.27% | 22,934 | |
| Triumph BONNEVILLE 642-904cc · 642-904cc | 12,456 | 90.8% | 12,824 | |
| BMW S 1000 · 999cc | 8,445 | 91.96% | 15,282 | |
| Yamaha YZF R1 · 998cc | 6,022 | 88.01% | 23,152 | |
| Yamaha MT 800-1000cc · 800-1000cc | 5,720 | 90.98% | 16,130 | |
| Honda NC · 741cc | 5,311 | 89.53% | 22,765 |
Source: DVSA MOT testing data, 2025 · updated Aug 2026 · licence and method