BRIXTON BX 125

125cc Petrol Class 1

#4983 of 5426 overall #1 of 1 BRIXTONs #509 of 734 commuter bikes

65.7%

first-time pass rate

18.5%

failed outright

3,677

median miles at test

271

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2020–2025

The BX 125's first-time pass rate has fallen 20.8 points since 2020, 93.5% to 72.7%.

What fails on a BX 125

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	55	42
brakes	21	16
structure and attachments	18	13.7
suspension	10	7.6
steering	9	6.9
tyres	6	4.6
Identification of the vehicle	5	3.8
audible warning (Horn)	4	3.1
wheels	3	2.3

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 BX 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 BX 125.

Pass rate by registration year

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

Best year to buy used: 2017 (72.8% pass). Weakest: 2019 (60.3%).

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.