BSA C25

250cc Petrol Class 2

88.4%

first-time pass rate

3.2%

failed outright

11,990

median miles at test

155

MOT tests, 2005–2025

What fails on a C25

failure defects by component group · advisories excluded

Component group	Defects	% of defects
steering and suspension	6	37.5
brakes	5	31.2
lighting and signalling	3	18.8
body and structure	1	6.2
driving controls	1	6.2

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the C25 beats 4 of its 4 closest rivals (YAMAHA YP250, YAMAHA WR250F, HONDA XR250).

YAMAHA YP250 82.5% pass · 12.4k tests YAMAHA WR250F 78.0% pass · 10.5k tests HONDA XR250 78.8% pass · 9,277 tests HONDA CBF250 84.9% pass · 7,536 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 C25.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 1967 (92.3% pass). Weakest: 1968 (86.8%).

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.