WK BIKES 125

124cc Petrol Class 1

#5338 of 5426 overall #7 of 7 WK BIKESs #693 of 734 commuter bikes

54.9%

first-time pass rate

35.9%

failed outright

4,229

median miles at test

446

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2017–2023

The 125's first-time pass rate has risen 11.3 points since 2017, 56.4% to 67.7%.

What fails on a 125

failure defects by component group · advisories excluded

Component group	Defects	% of defects
structure and attachments	99	19.2
lamps and reflectors	94	18.3
brakes	89	17.3
suspension	62	12
steering	44	8.5
steering and suspension	44	8.5
lighting and signalling	39	7.6
body and structure	17	3.3
drive system	14	2.7
tyres	13	2.5

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 125 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 125.

Pass rate by registration year

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

Best year to buy used: 2014 (55.8% pass). Weakest: 2013 (54.1%).

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.