BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ KAWASAKI/BX 125 AKFA
Model report · 2005–2025

KAWASAKI BX 125 AKFA

125cc Petrol Class 1
73.6%
first-time pass rate
19.5%
failed outright
8,114
median miles at test
976
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2022–2025

The BX 125 AKFA's first-time pass rate has fallen 7.1 points since 2022, 80.9% to 73.8%.

67%75%84%2022: 80.9% pass (178 tests)2023: 70.0% pass (313 tests)2024: 72.1% pass (233 tests)2025: 73.8% pass (240 tests)20222025

Pass rate by mileage

how the BX 125 AKFA's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage BX 125 AKFA passes first time 79.3% of the time; by 20k that's 53.7%.

49%67%84%0k: 79.3% pass (594 tests)10k: 66.9% pass (284 tests)20k: 53.7% pass (67 tests)0k10k20k

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 BX 125 AKFA

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
146 28.1 2.2×
lamps and reflectors
100 19.3 4.5×
structure and attachments
97 18.7 10.0×
suspension
52 10 6.7×
tyres
52 10 6.9×
steering
39 7.5 7.4×
wheels
21 4 32.4×
audible warning (Horn)
7 1.3 3.9×
Identification of the vehicle
5 1 2.2×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the BX 125 AKFA beats 4 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

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 AKFA.

Pass rate by registration year

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

Best year to buy used: 2019 (75.4% pass). Weakest: 2020 (70.7%).

70%73%76%2019: 75.4% pass (581 tests)2020: 70.7% pass (368 tests)20192020

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.

KAWASAKI BX 125 AKFA FAQ

answers computed from the data above · terms in the glossary

Is the KAWASAKI BX 125 AKFA reliable?

The KAWASAKI BX 125 AKFA is about average for its class: 73.6% of its 976 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4436 of 5426 models.

What does a BX 125 AKFA fail its MOT on most?

brakes — 28% of all defects recorded against failed BX 125 AKFA tests.

How many miles will a BX 125 AKFA last?

The median BX 125 AKFA shows 8,114 miles at test, and examples around 20k miles still pass 53.7% of the time — mileage alone rarely kills one.