BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HONDA/SH 125 AD-K
Model report · 2005–2025

HONDA SH 125 AD-K

125cc Petrol Class 1
81.6%
first-time pass rate
10.1%
failed outright
33,400
median miles at test
2,029
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2021–2025

The SH 125 AD-K's first-time pass rate has risen 7.2 points since 2021, 74.2% to 81.4%.

71%80%88%2021: 74.2% pass (62 tests)2022: 85.1% pass (495 tests)2023: 79.6% pass (584 tests)2024: 80.9% pass (434 tests)2025: 81.4% pass (424 tests)20212025

Pass rate by mileage

how the SH 125 AD-K's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage SH 125 AD-K passes first time 95.5% of the time; by 50k that's 72.0%.

67%84%100%0k: 95.5% pass (403 tests)10k: 86.7% pass (301 tests)20k: 83.6% pass (219 tests)30k: 76.4% pass (220 tests)40k: 76.5% pass (226 tests)50k: 72.0% pass (193 tests)0k30k50k

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 SH 125 AD-K

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lamps and reflectors
145 31.7 3.6×
brakes
125 27.3 1.1×
tyres
76 16.6 4.7×
steering
50 10.9 4.9×
suspension
36 7.9 1.9×
structure and attachments
10 2.2 0.6×
audible warning (Horn)
8 1.7 2.2×
wheels
7 1.5 4.1×
Identification of the vehicle
1 0.2 0.2×

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 SH 125 AD-K 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 SH 125 AD-K.

Pass rate by registration year

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

Best year to buy used: 2019 (82.0% pass). Weakest: 2020 (78.6%).

78%80%83%2019: 82.0% pass (1,777 tests)2020: 78.6% pass (252 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.

HONDA SH 125 AD-K FAQ

answers computed from the data above · terms in the glossary

Is the HONDA SH 125 AD-K reliable?

The HONDA SH 125 AD-K is more reliable than average for its class: 81.6% of its 2,029 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #3253 of 5426 models.

What does a SH 125 AD-K fail its MOT on most?

lamps and reflectors — 32% of all defects recorded against failed SH 125 AD-K tests.

How many miles will a SH 125 AD-K last?

The median SH 125 AD-K shows 33,400 miles at test, and examples around 50k miles still pass 72.0% of the time — mileage alone rarely kills one.