Pass rate over time
The M100's first-time pass rate has fallen 6.8 points since 2006, 93.3% to 86.5%.
Pass rate by mileage
A low-mileage M100 passes first time 87.8% of the time; by 30k that's 98.2%.
First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.
What fails on a M100
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
20 | 50 |
| brakes |
|
8 | 20 |
| steering and suspension |
|
4 | 10 |
| tyres and wheels |
|
3 | 7.5 |
| reg plates and vin |
|
1 | 2.5 |
| fuel and exhaust |
|
1 | 2.5 |
| drive system |
|
1 | 2.5 |
| driving controls |
|
1 | 2.5 |
| body and structure |
|
1 | 2.5 |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.
How rivals compare
On first-time pass rate the M100 beats 4 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).
Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the M100.
Pass rate by registration year
Best year to buy used: 1955 (98.1% pass). Weakest: 1955 (98.1%).
First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.