BSA BANTAM D7

175cc Petrol Class 1

#1937 of 5426 overall #59 of 62 BSAs #1173 of 2787 other bikes

86.9%

first-time pass rate

7.0%

failed outright

11,826

median miles at test

229

MOT tests, 2005–2025

Pass rate by mileage

how the BANTAM D7's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage BANTAM D7 passes first time 86.0% of the time; by 20k that's 82.2%.

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 BANTAM D7

failure defects by component group · advisories excluded

Component group	Defects	% of defects
steering and suspension	14	30.4
lighting and signalling	11	23.9
tyres and wheels	8	17.4
brakes	6	13
body and structure	3	6.5
driving controls	1	2.2
drive system	1	2.2
Items Not Tested	1	2.2
lamps and reflectors	1	2.2

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 BANTAM D7 beats 0 of its 1 closest rivals (BSA BANTAM).

BSA BANTAM 88.7% pass · 7,201 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 BANTAM D7.

Pass rate by registration year

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

Best year to buy used: 1966 (93.3% pass). Weakest: 1966 (93.3%).

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.