WK BIKES BD

125cc Petrol Class 1

#5141 of 5426 overall #6 of 7 WK BIKESs #585 of 734 commuter bikes

62.1%

first-time pass rate

26.7%

failed outright

3,111

median miles at test

206

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2019–2021

The BD's first-time pass rate has fallen 17.7 points since 2019, 70.6% to 52.9%.

What fails on a BD

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	68	36.8
brakes	37	20
structure and attachments	28	15.1
tyres	22	11.9
suspension	14	7.6
steering	4	2.2
lighting and signalling	4	2.2
audible warning (Horn)	4	2.2
Identification of the vehicle	2	1.1
steering and suspension	2	1.1

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 BD beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

YAMAHA YBR 125 71.0% pass · 125k tests HONDA CG125 72.2% pass · 89.3k tests HONDA CBF125 73.3% pass · 84.4k tests GILERA RUNNER 70.8% pass · 69.9k 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 BD.

Pass rate by registration year

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

Best year to buy used: 2016 (59.8% pass). Weakest: 2015 (58.5%).

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.