Pass rate over time
The A65L's first-time pass rate has risen 7.8 points since 2006, 88.0% to 95.8%.
Pass rate by mileage
A low-mileage A65L passes first time 90.4% of the time; by 40k that's 90.3%.
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 A65L
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lighting and signalling |
|
10 | 43.5 | 0.3× |
| steering and suspension |
|
6 | 26.1 | 0.2× |
| brakes |
|
5 | 21.7 | 0.1× |
| tyres and wheels |
|
2 | 8.7 | 0.2× |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.
How rivals compare
On first-time pass rate the A65L 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 A65L.
Pass rate by registration year
Best year to buy used: 1968 (92.1% pass). Weakest: 1972 (82.1%).
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.
BSA A65L FAQ
Is the BSA A65L reliable?
The BSA A65L is more reliable than average for its class: 91.0% of its 619 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #680 of 5426 models.
What does a A65L fail its MOT on most?
lighting and signalling — 43% of all defects recorded against failed A65L tests.
What is the best year of A65L to buy used?
By first-time pass rate, 1968-registered examples do best (92.1%) and 1972 worst (82.1%). Condition and history still trump the year.
How many miles will a A65L last?
The median A65L shows 10,394 miles at test, and examples around 40k miles still pass 90.3% of the time — mileage alone rarely kills one.