BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HONDA/SH 125 AD2-N
Model report · 2005–2025

HONDA SH 125 AD2-N

125cc Petrol Class 1
88.1%
first-time pass rate
8.3%
failed outright
26,849
median miles at test
666
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2023–2025

The SH 125 AD2-N's first-time pass rate has fallen 1.1 points since 2023, 89.4% to 88.3%.

85%87%90%2023: 89.4% pass (47 tests)2024: 85.5% pass (55 tests)2025: 88.3% pass (540 tests)20232025

Pass rate by mileage

how the SH 125 AD2-N's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage SH 125 AD2-N passes first time 93.1% of the time; by 50k that's 85.7%.

84%89%95%0k: 93.1% pass (144 tests)10k: 87.0% pass (123 tests)20k: 87.1% pass (101 tests)30k: 85.3% pass (75 tests)40k: 87.3% pass (79 tests)50k: 85.7% pass (56 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 AD2-N

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
35 31 0.8×
lamps and reflectors
29 25.7 2.4×
tyres
16 14.2 3.5×
suspension
16 14.2 2.6×
steering
10 8.8 2.5×
wheels
3 2.7 5.0×
structure and attachments
2 1.8 0.4×
Identification of the vehicle
2 1.8 1.3×

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 AD2-N 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 AD2-N.

Pass rate by registration year

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

Best year to buy used: 2022 (88.1% pass). Weakest: 2022 (88.1%).

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 AD2-N FAQ

answers computed from the data above · terms in the glossary

Is the HONDA SH 125 AD2-N reliable?

The HONDA SH 125 AD2-N is more reliable than average for its class: 88.1% of its 666 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #1575 of 5426 models.

What does a SH 125 AD2-N fail its MOT on most?

brakes — 31% of all defects recorded against failed SH 125 AD2-N tests.

How many miles will a SH 125 AD2-N last?

The median SH 125 AD2-N shows 26,849 miles at test, and examples around 50k miles still pass 85.7% of the time — mileage alone rarely kills one.