Model report · 2005–2025
BSA WDB40
350cc
Petrol
Class 2
95.3%
first-time pass rate
0.0%
failed outright
4,834
median miles at test
86
MOT tests, 2005–2025
How rivals compare
same type, similar capacity, high test volume
On first-time pass rate the WDB40 beats 4 of its 4 closest rivals (SUZUKI AN400, SUZUKI DR-Z400S, YAMAHA RD350).
SUZUKI
AN400
86.2% pass · 27.1k tests
SUZUKI
DR-Z400S
80.4% pass · 26.8k tests
YAMAHA
RD350
86.3% pass · 19.6k tests
KAWASAKI
ZXR400
73.1% pass · 14.2k tests
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 WDB40.
Pass rate by registration year
how each model-year cohort fares · registration year from first use date
Best year to buy used: 1967 (96.3% pass). Weakest: 1967 (96.3%).
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.