AJS DD100E
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 DD100E
| Component group | Share of defects | Defects | % of defects |
|---|---|---|---|
| lighting and signalling |
|
69 | 43.7 |
| steering and suspension |
|
28 | 17.7 |
| brakes |
|
25 | 15.8 |
| drive system |
|
11 | 7 |
| tyres and wheels |
|
8 | 5.1 |
| body and structure |
|
6 | 3.8 |
| Items Not Tested |
|
3 | 1.9 |
| fuel and exhaust |
|
3 | 1.9 |
| suspension |
|
3 | 1.9 |
| reg plates and vin |
|
2 | 1.3 |
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 DD100E beats 2 of its 4 closest rivals (YAMAHA YBR 125, HONDA C90, HONDA CG125).
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 DD100E.
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