BMW F SERIES 651cc MOT pass rate and common failures
BMW F SERIES 651cc motorcycles pass the MOT 84.41% of the time, measured across 1,495 tests in the DVSA record. A further 5.35% passed only after a defect was put right at the test station.
Calculated from DVSA records for BMW F SERIES, 648-652cc.
What to check before the MOT
Built from this model's own failure record, not general advice.
- Start with not working - it accounts for 32% of failed tests on this model.
- Then check has a serious fluid leak and too low, the next two most common reasons.
- Age matters here: 89.63% of 11-15 year old examples pass, against 83.77% at 16+ years - a gap of 5.9 points.
- The most common advisory is less than 1.0 mm thick (5.9% of all tests) - not a failure, but money you will spend sooner or later.
- Average recorded mileage at test is 29,064 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 | |
|---|---|---|---|
| 11-15 years | 89.63% | 164 | |
| 16+ years | 83.77% | 1,331 |
Why the BMW F SERIES 651cc 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 | Not working | 32% | 49 | |
| 2 | Has a serious fluid leak | 21.6% | 33 | |
| 3 | Too low | 12.4% | 19 | |
| 4 | Too high | 11.8% | 18 | |
| 5 | Tread depth is below minimum requirements of 1.0mm | 8.5% | 13 | |
| 6 | Less than 1.0 mm thick | 7.8% | 12 | |
| 7 | Not working on dipped beam | 7.8% | 12 | |
| 8 | Remains on when the brakes are released | 7.2% | 11 | |
| 9 | Does not illuminate by the operation of both brake controls | 6.5% | 10 | |
| 10 | Fouling on the fuel tank or bodywork on full lock | 5.2% | 8 |
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 | 5.9% | 88 | |
| 2 | Has a serious fluid leak | 5.4% | 80 | |
| 3 | Tread depth is below minimum requirements of 1.0mm | 4.9% | 73 | |
| 4 | Significantly and obviously worn | 3.1% | 47 | |
| 5 | Excessively loose | 2.6% | 39 | |
| 6 | Indicates excessive fluctuation of brake effort | 2.3% | 35 | |
| 7 | Excessively stiff or notchy | 2.1% | 32 | |
| 8 | In such a condition that it is seriously weakened | 1.9% | 28 | |
| 9 | Worn to excess | 1.8% | 27 | |
| 10 | Excessively binding | 1.7% | 26 |
BMW F SERIES 651cc for sale
No BMW F SERIES 651cc in stock at the moment - 87 other BMW bikes are advertised.
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 | |
| Honda NC · 741cc | 5,311 | 89.53% | 22,765 | |
| Honda CBR600F · 599cc | 4,914 | 85.61% | 30,486 | |
| Suzuki GSF600 · 600cc | 4,890 | 80% | 29,308 | |
| Kawasaki ZX-6R · 599-636cc | 4,713 | 81.54% | 26,085 | |
| Royal Enfield INTERCEPTOR INT 650 · 649cc | 4,016 | 91.24% | 5,914 |
Source: DVSA MOT testing data, 2025 · updated Aug 2026 · licence and method