Moto Guzzi GRISO MOT pass rate and common failures
Moto Guzzi GRISO motorcycles pass the MOT 91.92% of the time, measured across 297 tests in the DVSA record. A further 4.04% 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 50% of failed tests on this model.
- Then check too high and not working, the next two most common reasons.
- The most common advisory is tread depth is below minimum requirements of 1.0mm (5.4% of all tests) - not a failure, but money you will spend sooner or later.
- Average recorded mileage at test is 19,259 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 | 94.12% | 51 | |
| 11-15 years | 89.74% | 78 | |
| 16+ years | 92.26% | 168 |
Why the Moto Guzzi GRISO 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 | 50% | 6 | |
| 2 | Too high | 41.7% | 5 | |
| 3 | Not working | 25% | 3 | |
| 4 | Tread depth is below minimum requirements of 1.0mm | 25% | 3 | |
| 5 | Does not illuminate simultaneously with the position lamp(s) | 16.7% | 2 | |
| 6 | Grabbing severely | 8.3% | 1 | |
| 7 | Has a major leak of exhaust gases | 8.3% | 1 | |
| 8 | Inoperative | 8.3% | 1 | |
| 9 | Inoperative in the case of a single lamp or all lamps | 8.3% | 1 | |
| 10 | Insecure | 8.3% | 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 | Tread depth is below minimum requirements of 1.0mm | 5.4% | 16 | |
| 2 | Indicates excessive fluctuation of brake effort | 3.7% | 11 | |
| 3 | Significantly and obviously worn | 3.7% | 11 | |
| 4 | Has a serious fluid leak | 2% | 6 | |
| 5 | Less than 1.0 mm thick | 2% | 6 | |
| 6 | Noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition | 2% | 6 | |
| 7 | Excessively distorted | 0.7% | 2 | |
| 8 | Is bent and the brake cannot be readily applied | 0.7% | 2 | |
| 9 | Excessively deformed | 0.3% | 1 | |
| 10 | Has a major leak of exhaust gases | 0.3% | 1 |
Moto Guzzi GRISO for sale
No Moto Guzzi GRISO in stock at the moment - 171 other Moto Guzzi 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 R SERIES · 1,152cc | 9,796 | 91.92% | 40,594 | |
| BMW R1200 · 1,170cc | 9,521 | 94.43% | 28,830 | |
| BMW S 1000 · 999cc | 8,445 | 91.96% | 15,282 | |
| BMW R1250 · 1,254cc | 6,764 | 96.17% | 17,373 |
Source: DVSA MOT testing data, 2025 · updated Aug 2026 · licence and method