BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

KAWASAKI KMX

124cc Petrol Class 1
63.6%
first-time pass rate
25.1%
failed outright
17,351
median miles at test
338
MOT tests, 2005–2025

Pass rate by mileage

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

A low-mileage KMX passes first time 62.5% of the time; by 20k that's 63.0%.

62%63%64%0k: 62.5% pass (64 tests)10k: 63.4% pass (131 tests)20k: 63.0% pass (92 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 KMX

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
145 36.9
steering and suspension
63 16
brakes
54 13.7
tyres and wheels
44 11.2
drive system
34 8.7
fuel and exhaust
17 4.3
reg plates and vin
14 3.6
body and structure
9 2.3
structure and attachments
7 1.8
lamps and reflectors
6 1.5

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 KMX beats 0 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 KMX.

Pass rate by registration year

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

Best year to buy used: 1989 (69.0% pass). Weakest: 1989 (69.0%).

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.