Suzuki AN 400 AL8 MOT pass rate and common failures
Suzuki AN 400 AL8 motorcycles pass the MOT 91.83% of the time, measured across 208 tests in the DVSA record. A further 1.92% 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 excessively binding - it accounts for 46.2% of failed tests on this model.
- Then check less than 1.0 mm thick and tread depth is below minimum requirements of 1.0mm, the next two most common reasons.
- The most common advisory is less than 1.0 mm thick (3.8% of all tests) - not a failure, but money you will spend sooner or later.
- Average recorded mileage at test is 12,431 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 | 92.93% | 184 |
Why the Suzuki AN 400 AL8 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 | Excessively binding | 46.2% | 6 | |
| 2 | Less than 1.0 mm thick | 30.8% | 4 | |
| 3 | Tread depth is below minimum requirements of 1.0mm | 23.1% | 3 | |
| 4 | Does not illuminate simultaneously with the position lamp(s) | 7.7% | 1 | |
| 5 | Grip insecure to handlebar | 7.7% | 1 | |
| 6 | Inoperative in the case of a single lamp or all lamps | 7.7% | 1 | |
| 7 | Insecurely mounted and braking performance affected | 7.7% | 1 | |
| 8 | Seriously damaged | 7.7% | 1 | |
| 9 | The less effective brake control does not achieve an efficiency of 25% | 7.7% | 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 | Less than 1.0 mm thick | 3.8% | 8 | |
| 2 | Excessively binding | 2.9% | 6 | |
| 3 | Tread depth is below minimum requirements of 1.0mm | 2.9% | 6 | |
| 4 | In such a condition that it is seriously weakened | 1.9% | 4 | |
| 5 | Indicates excessive fluctuation of brake effort | 1.4% | 3 | |
| 6 | Excessively corroded | 1% | 2 | |
| 7 | Excessively stiff or notchy | 0.5% | 1 | |
| 8 | Has a major leak of exhaust gases | 0.5% | 1 | |
| 9 | Has excessive play | 0.5% | 1 | |
| 10 | Significantly and obviously worn | 0.5% | 1 |
Suzuki AN 400 AL8 for sale
1 Suzuki AN 400 AL8 adverts on MotoDealers UK right now, 529 Suzuki in total.
Similar bikes compared
Models of comparable capacity, so the comparison means something.
| Model | Tests | Pass rate | Avg mileage | |
|---|---|---|---|---|
| Honda CB 397-750cc · 397-750cc | 5,400 | 89.76% | 19,444 | |
| Royal Enfield HIMALAYAN · 411cc | 2,371 | 88.49% | 8,163 | |
| Royal Enfield METEOR 350 · 349cc | 2,133 | 93.95% | 4,543 | |
| Honda CB500 · 497cc | 1,300 | 84.08% | 34,941 | |
| Honda CRF 300 LA-M · 286cc | 1,297 | 88.43% | 3,963 | |
| BMW G310 · 313cc | 1,129 | 90.79% | 7,243 |
Source: DVSA MOT testing data, 2025 · updated Aug 2026 · licence and method