BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
79.9%
first-time pass rate
10.1%
failed outright
10,172
median miles at test
368
MOT tests, 2005–2025

Pass rate by mileage

how the P125's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage P125 passes first time 85.1% of the time; by 20k that's 87.5%.

70%80%90%0k: 85.1% pass (175 tests)10k: 73.2% pass (82 tests)20k: 87.5% pass (40 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 P125

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
43 45.7
brakes
22 23.4
steering and suspension
11 11.7
tyres and wheels
7 7.4
fuel and exhaust
4 4.3
lamps and reflectors
3 3.2
reg plates and vin
2 2.1
steering
1 1.1
body and structure
1 1.1

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 P125 beats 1 of its 4 closest rivals (PIAGGIO VESPA, HONDA PCX 125, HONDA Vision 110).

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 P125.

Pass rate by registration year

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

Best year to buy used: 1980 (82.7% pass). Weakest: 1980 (82.7%).

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.