SKYJET SJ125
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.
What fails on a SJ125
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
85 | 32.4 |
| steering and suspension |
|
51 | 19.5 |
| brakes |
|
37 | 14.1 |
| tyres and wheels |
|
28 | 10.7 |
| body and structure |
|
23 | 8.8 |
| drive system |
|
18 | 6.9 |
| fuel and exhaust |
|
9 | 3.4 |
| driving controls |
|
5 | 1.9 |
| reg plates and vin |
|
5 | 1.9 |
| steering |
|
1 | 0.4 |
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 SJ125 beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).
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 SJ125.
Compare with any bike
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