League table/AJS
Make report · 2005–2025
AJS
77.6%
first-time pass rate
14.2%
failed outright
46.6k
MOT tests, 2005–2025
AJS at a glance
Most reliable model
18
95.1% pass
Least reliable model
CR3-125
43.9% pass
Most tested model
modena
5,766 tests
Among AJS models with ≥ 100 tests.
What fails a AJS
failure defects across all AJS models · advisories excluded
lamps and reflectors is AJS's most common failure — 5.1% of all AJS tests record one.
| Component group | Share of defects | % of tests | Worst offenders |
|---|---|---|---|
| lamps and reflectors |
|
5.1 | see ranking |
| brakes |
|
5.1 | see ranking |
| lighting and signalling |
|
3.6 | see ranking |
| steering and suspension |
|
2.3 | see ranking |
| structure and attachments |
|
2.2 | see ranking |
Top failure groups aggregated across every AJS model, 2005–2025. "% of tests" = share of the make's tests recording at least one defect in that group.
AJS models, ranked by test volume
top 60 of 67 models (≥ 100 tests), 2005–2025 · by volume
| Model | Pass rate | Pass % | Fail % | Median miles | Tests |
|---|---|---|---|---|---|
| modena |
|
74.9 | 15.9 | 2,788 | 5,766 |
| MODENA 125 |
|
77.3 | 14.5 | 2,242 | 2,124 |
| DD |
|
68.4 | 20.5 | 3,780 | 1,798 |
| FIREFOX |
|
69.4 | 21.9 | 6,168 | 1,537 |
| DD 125 E 08 |
|
67.3 | 20.3 | 5,256 | 1,468 |
| 16MS |
|
91.1 | 2.5 | 15,862 | 1,268 |
| CADWELL |
|
74.5 | 16.3 | 4,088 | 1,263 |
| DD 125 E |
|
62.2 | 23.7 | 8,162 | 1,189 |
| JS 125-E2 |
|
69.1 | 20.4 | 10,207 | 1,187 |
| DIGITA |
|
73.7 | 18.8 | 4,598 | 980 |
| DD 125 E-5 |
|
68.9 | 21.0 | 4,252 | 957 |
| JS 125-E |
|
63.2 | 24.6 | 12,612 | 699 |
| JS |
|
71.2 | 20.2 | 9,562 | 674 |
| JSM |
|
56.4 | 32.1 | 5,541 | 599 |
| 18S |
|
92.8 | 3.0 | 14,829 | 598 |
| TEMPEST ROADSTER |
|
72.2 | 18.3 | 3,790 | 558 |
| 350 |
|
88.7 | 4.1 | 12,350 | 486 |
| NAC 12 |
|
61.3 | 21.8 | 5,772 | 463 |
| 16M |
|
92.3 | 2.4 | 15,340 | 454 |
| 31 |
|
91.2 | 3.8 | 13,775 | 422 |
| REGAL RAPTOR |
|
66.4 | 22.6 | 6,472 | 402 |
| TEMPEST SCRAMBLER |
|
66.8 | 23.3 | 4,893 | 382 |
| 16 |
|
93.1 | 0.6 | 19,886 | 331 |
| MODEL 31 |
|
91.4 | 1.6 | 23,465 | 314 |
| FLIGHT |
|
58.2 | 35.0 | 6,198 | 311 |
| MODEL 20 |
|
90.3 | 3.2 | 16,829 | 308 |
| 18 |
|
95.1 | 1.9 | 16,601 | 308 |
| HIGHWAY STAR |
|
71.5 | 16.3 | 2,688 | 288 |
| ZN |
|
72.4 | 20.3 | 4,898 | 286 |
| DD 125 E-5C |
|
69.4 | 19.9 | 5,921 | 281 |
| MODEL 18 |
|
94.8 | 0.4 | 7,529 | 267 |
| CR3-125 |
|
43.9 | 45.4 | 6,446 | 262 |
| DD50E |
|
65.3 | 22.8 | 3,642 | 259 |
| 31CSR |
|
91.7 | 2.0 | 21,958 | 254 |
| DD125 |
|
62.7 | 27.0 | 5,596 | 252 |
| 500 |
|
88.0 | 5.2 | 13,920 | 251 |
| 20 |
|
93.9 | 0.8 | 13,470 | 247 |
| TN |
|
52.5 | 40.2 | 5,794 | 244 |
| DD 125 E-8 |
|
57.6 | 21.8 | 7,821 | 243 |
| MODEL 16 |
|
93.0 | 2.2 | 14,092 | 229 |
| JS 125-6C |
|
70.8 | 20.8 | 9,837 | 216 |
| DD 250 S-9B |
|
74.9 | 14.4 | 4,592 | 215 |
| R7 |
|
44.8 | 48.1 | 6,232 | 212 |
| JS125 |
|
72.0 | 19.9 | 11,398 | 211 |
| DD 250 E |
|
75.6 | 14.9 | 5,916 | 201 |
| DD100E |
|
72.6 | 20.3 | 3,217 | 197 |
| YX-R 125 |
|
48.7 | 36.8 | 6,633 | 193 |
| AJS |
|
84.8 | 8.9 | 15,525 | 191 |
| MODEL 8 |
|
90.9 | 3.2 | 13,006 | 186 |
| 14 |
|
89.2 | 5.1 | 10,063 | 176 |
| JSM 50 |
|
53.8 | 34.7 | 5,089 | 173 |
| JSM 125 |
|
54.9 | 35.4 | 9,376 | 164 |
| 650 |
|
93.7 | 2.5 | 19,886 | 159 |
| DD 50 E-2 |
|
62.5 | 26.3 | 4,245 | 152 |
| M16 |
|
89.8 | 4.1 | 15,904 | 147 |
| ECO |
|
66.9 | 22.1 | 8,395 | 145 |
| NAC |
|
57.0 | 33.8 | 4,134 | 142 |
| CSR |
|
81.9 | 5.1 | 22,637 | 138 |
| INSETTO |
|
70.1 | 24.1 | 4,522 | 137 |
| DD 125 E-8 REGAL RAPTOR |
|
70.3 | 25.0 | 2,624 | 128 |
Normal tests only. Median miles is odometer reading at test where recorded. Looking for a specific model? Search all AJS models. Source: DVSA anonymised MOT results, 2005–2025.