BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
73.8%
first-time pass rate
18.6%
failed outright
18,896
median miles at test
263
MOT tests, 2005–2025

Pass rate by mileage

how the P125X's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage P125X passes first time 70.5% of the time; by 40k that's 67.7%.

64%76%88%0k: 70.5% pass (95 tests)10k: 85.0% pass (40 tests)20k: 74.2% pass (31 tests)30k: 81.8% pass (33 tests)40k: 67.7% pass (31 tests)0k20k40k

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 P125X

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
41 36.3
steering and suspension
20 17.7
brakes
18 15.9
tyres and wheels
11 9.7
lamps and reflectors
8 7.1
reg plates and vin
5 4.4
suspension
5 4.4
body and structure
3 2.7
structure and attachments
1 0.9
fuel and exhaust
1 0.9

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 P125X beats 0 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 P125X.

Pass rate by registration year

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

Best year to buy used: 1981 (69.4% pass). Weakest: 1981 (69.4%).

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.