BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ PIAGGIO/VESPA ET4
Model report · 2005–2025
74.0%
first-time pass rate
18.6%
failed outright
10,028
median miles at test
4,119
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2025

The VESPA ET4's first-time pass rate has fallen 1.7 points since 2005, 77.9% to 76.2%.

66%75%84%2005: 77.9% pass (136 tests)2006: 74.8% pass (630 tests)2007: 72.5% pass (618 tests)2008: 69.1% pass (512 tests)2009: 75.9% pass (319 tests)2010: 74.4% pass (211 tests)2011: 76.8% pass (211 tests)2012: 74.5% pass (192 tests)2013: 72.0% pass (182 tests)2014: 76.5% pass (162 tests)2015: 77.5% pass (151 tests)2016: 76.1% pass (142 tests)2017: 76.1% pass (134 tests)2018: 78.8% pass (85 tests)2019: 69.2% pass (78 tests)2020: 70.4% pass (71 tests)2021: 76.6% pass (77 tests)2022: 70.8% pass (65 tests)2023: 72.9% pass (59 tests)2024: 81.0% pass (42 tests)2025: 76.2% pass (42 tests)20052025

Pass rate by mileage

how the VESPA ET4's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage VESPA ET4 passes first time 77.8% of the time; by 30k that's 57.8%.

54%68%82%0k: 77.8% pass (2,048 tests)10k: 70.6% pass (1,545 tests)20k: 69.6% pass (421 tests)30k: 57.8% pass (64 tests)0k20k30k

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 VESPA ET4

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
588 32 2.3×
brakes
332 18.1 1.4×
tyres and wheels
268 14.6 2.9×
steering and suspension
264 14.4 1.7×
fuel and exhaust
125 6.8 3.4×
body and structure
90 4.9 4.2×
lamps and reflectors
83 4.5 0.8×
Items Not Tested
33 1.8 6.6×
tyres
27 1.5 0.9×
reg plates and vin
25 1.4 0.9×

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 VESPA ET4 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 VESPA ET4.

Pass rate by registration year

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

Best year to buy used: 2005 (82.2% pass). Weakest: 2001 (69.0%).

66%76%85%1996: 71.2% pass (66 tests)1997: 73.6% pass (318 tests)1998: 71.0% pass (317 tests)1999: 74.2% pass (341 tests)2000: 75.2% pass (702 tests)2001: 69.0% pass (654 tests)2002: 70.0% pass (610 tests)2003: 76.8% pass (439 tests)2004: 79.9% pass (428 tests)2005: 82.2% pass (101 tests)199620012005

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 VESPA ET4 FAQ

answers computed from the data above · terms in the glossary

Is the PIAGGIO VESPA ET4 reliable?

The PIAGGIO VESPA ET4 is about average for its class: 74.0% of its 4,119 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4396 of 5426 models.

What does a VESPA ET4 fail its MOT on most?

lighting and signalling — 32% of all defects recorded against failed VESPA ET4 tests.

What is the best year of VESPA ET4 to buy used?

By first-time pass rate, 2005-registered examples do best (82.2%) and 2001 worst (69.0%). Condition and history still trump the year.

How many miles will a VESPA ET4 last?

The median VESPA ET4 shows 10,028 miles at test, and examples around 30k miles still pass 57.8% of the time — mileage alone rarely kills one.