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

HONDA SH 125 AD-D

125cc Petrol Class 1
82.7%
first-time pass rate
10.0%
failed outright
19,904
median miles at test
2,498
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2015–2025

The SH 125 AD-D's first-time pass rate has fallen 2.9 points since 2015, 86.8% to 83.9%.

70%80%90%2015: 86.8% pass (38 tests)2016: 83.6% pass (439 tests)2017: 85.5% pass (358 tests)2018: 84.8% pass (263 tests)2019: 79.1% pass (234 tests)2020: 81.9% pass (221 tests)2021: 83.5% pass (248 tests)2022: 81.5% pass (233 tests)2023: 73.7% pass (205 tests)2024: 87.1% pass (132 tests)2025: 83.9% pass (124 tests)20152025

Pass rate by mileage

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

A low-mileage SH 125 AD-D passes first time 90.2% of the time; by 50k that's 81.5%.

77%85%92%0k: 90.2% pass (691 tests)10k: 82.4% pass (556 tests)20k: 79.1% pass (373 tests)30k: 81.8% pass (242 tests)40k: 84.8% pass (164 tests)50k: 81.5% pass (130 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-D

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lamps and reflectors
165 34 2.7×
brakes
100 20.6 0.7×
lighting and signalling
53 10.9 0.4×
tyres
47 9.7 2.6×
suspension
33 6.8 1.6×
tyres and wheels
31 6.4 0.6×
steering
21 4.3 1.7×
steering and suspension
18 3.7 0.2×
structure and attachments
13 2.7 0.6×
audible warning (Horn)
5 1 1.1×

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-D 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-D.

Pass rate by registration year

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

Best year to buy used: 2012 (86.9% pass). Weakest: 2013 (82.2%).

81%85%88%2012: 86.9% pass (214 tests)2013: 82.2% pass (2,281 tests)20122013

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-D FAQ

answers computed from the data above · terms in the glossary

Is the HONDA SH 125 AD-D reliable?

The HONDA SH 125 AD-D is more reliable than average for its class: 82.7% of its 2,498 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #3028 of 5426 models.

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

lamps and reflectors — 34% of all defects recorded against failed SH 125 AD-D tests.

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

The median SH 125 AD-D shows 19,904 miles at test, and examples around 50k miles still pass 81.5% of the time — mileage alone rarely kills one.