BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
82.8%
first-time pass rate
11.2%
failed outright
11,380
median miles at test
2,164
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2025

The PX's first-time pass rate has risen 4.6 points since 2006, 78.2% to 82.8%.

71%85%100%2006: 78.2% pass (101 tests)2007: 82.6% pass (92 tests)2008: 81.3% pass (96 tests)2009: 81.1% pass (111 tests)2010: 85.3% pass (109 tests)2011: 76.0% pass (129 tests)2012: 76.7% pass (120 tests)2013: 84.7% pass (118 tests)2014: 77.9% pass (122 tests)2015: 84.5% pass (103 tests)2016: 76.2% pass (101 tests)2017: 89.3% pass (121 tests)2018: 80.6% pass (93 tests)2019: 84.5% pass (110 tests)2020: 81.2% pass (85 tests)2021: 86.3% pass (117 tests)2022: 88.4% pass (121 tests)2023: 84.0% pass (125 tests)2024: 96.4% pass (84 tests)2025: 82.8% pass (93 tests)20062025

Pass rate by mileage

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

A low-mileage PX passes first time 84.6% of the time; by 40k that's 78.2%.

77%81%86%0k: 84.6% pass (956 tests)10k: 82.8% pass (679 tests)20k: 78.3% pass (276 tests)30k: 82.7% pass (104 tests)40k: 78.2% pass (87 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 PX

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
169 33.3 1.2×
brakes
88 17.3 0.7×
lamps and reflectors
86 16.9 1.4×
steering and suspension
56 11 0.7×
tyres and wheels
46 9.1 1.0×
reg plates and vin
16 3.1 1.0×
body and structure
15 3 1.3×
suspension
12 2.4 0.6×
steering
11 2.2 1.2×
structure and attachments
9 1.8 0.6×

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 PX beats 1 of its 4 closest rivals (PIAGGIO PX 200 E, PIAGGIO X9, LAMBRETTA GP200).

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 PX.

Pass rate by registration year

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

Best year to buy used: 1994 (90.5% pass). Weakest: 1981 (67.3%).

63%79%95%1981: 67.3% pass (52 tests)1994: 90.5% pass (74 tests)1995: 87.3% pass (71 tests)1997: 75.3% pass (77 tests)1998: 83.5% pass (79 tests)1999: 74.7% pass (83 tests)2000: 78.2% pass (87 tests)2001: 84.6% pass (246 tests)2002: 83.0% pass (394 tests)2003: 86.9% pass (421 tests)2005: 82.1% pass (78 tests)2007: 88.1% pass (59 tests)2008: 80.4% pass (56 tests)198120002008

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.

PIAGGIO PX FAQ

answers computed from the data above · terms in the glossary

Is the PIAGGIO PX reliable?

The PIAGGIO PX is more reliable than average for its class: 82.8% of its 2,164 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #3006 of 5426 models.

What does a PX fail its MOT on most?

lighting and signalling — 33% of all defects recorded against failed PX tests.

What is the best year of PX to buy used?

By first-time pass rate, 1994-registered examples do best (90.5%) and 1981 worst (67.3%). Condition and history still trump the year.

How many miles will a PX last?

The median PX shows 11,380 miles at test, and examples around 40k miles still pass 78.2% of the time — mileage alone rarely kills one.