The pass rate is the MOT first-time pass: a roadworthiness check of the items an MOT covers (brakes, lights, tyres, steering, structure, emissions), not a full mechanical inspection of engine or gearbox internals. It is a reliability signal, not a complete measure of mechanical reliability. What this measures.
“vs expected” adjusts for age, mileage and test class, so a cherished classic and a hard-used commuter are compared fairly. How this works.
Pass rate by mileage
A low-mileage 350 S/C passes first time 74.2% of the time; by 20k that's 86.5%.
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 350 S/C
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
35 | 31 |
| steering and suspension |
|
22 | 19.5 |
| brakes |
|
21 | 18.6 |
| sidecar |
|
13 | 11.5 |
| lamps and reflectors |
|
5 | 4.4 |
| wheels |
|
4 | 3.5 |
| body and structure |
|
4 | 3.5 |
| tyres and wheels |
|
4 | 3.5 |
| fuel and exhaust |
|
3 | 2.7 |
| audible warning (Horn) |
|
2 | 1.8 |
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 350 S/C beats 1 of its 4 closest rivals (SUZUKI AN400, SUZUKI DR-Z400S, YAMAHA RD350).
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 350 S/C.
Compare with any bike
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