BIKERELIABILITY Reg check
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Piaggio Vespa LX 125 vs Honda PCX 125

The Honda PCX 125 passes its MOT first time more often than the Piaggio Vespa LX 125: 81.1% vs 77.4%, a 3.7-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Piaggio Vespa LX 125 Honda PCX 125
First-time pass rate 77.4% 81.1%
Outright fail rate 13.8% 12.9%
Vs comparable bikes (age & mileage adjusted) +6.5 pts +8.2 pts
Engine size 124cc 125cc
Rank among all models #3999 of 5428 #3358 of 5428
Median miles at test 12,658 16,405
MOT tests analysed 6,375 88,608
Most common failure brakes brakes

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better
Component Piaggio Vespa LX 125 Honda PCX 125
Brakes 4.5% 6.7%
Lights & signalling 7.2% 3.9%
Tyres & wheels 4.8% 5.3%
Steering & suspension 3.7% 4.4%
Structure & body 1.8% 0.7%
Fuel & exhaust 0.6% 0.0%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year Piaggio Vespa LX 125 Honda PCX 125
2018 78.5% 81.2%
2019 77.7% 79.9%
2020 75.2% 82.3%
2021 75.9% 80.3%
2022 76.0% 80.3%
2023 76.6% 80.2%
2024 75.1% 80.9%
2025 74.9% 81.6%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test
Mileage Piaggio Vespa LX 125 Honda PCX 125
0k-10k miles 82.3% 88.4%
10k-20k miles 75.3% 79.3%
20k-30k miles 74.8% 78.0%
30k-40k miles 70.5% 77.0%
40k-50k miles 66.2% 74.8%
50k-60k miles 78.2% 75.8%

Bands with fewer than 30 tests for either bike are left out.

Piaggio Vespa LX 125 vs Honda PCX 125 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Piaggio Vespa LX 125 or the Honda PCX 125?

The Honda PCX 125 passes its MOT first time more often than the Piaggio Vespa LX 125: 81.1% vs 77.4%, a 3.7-point lead. Adjusted for age, mileage and test class, the Honda PCX 125 still comes out ahead: +6.5 points vs comparable bikes for the Piaggio Vespa LX 125, +8.2 for the Honda PCX 125. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Piaggio Vespa LX 125 fail its MOT on most?

Lights & signalling: 7.2% of Piaggio Vespa LX 125 MOT tests failed on it, then tyres & wheels (4.8%).

What does the Honda PCX 125 fail its MOT on most?

Brakes: 6.7% of Honda PCX 125 MOT tests failed on it, then tyres & wheels (5.3%).

Which holds up better at high mileage, the Piaggio Vespa LX 125 or the Honda PCX 125?

At 50k-60k miles the Piaggio Vespa LX 125 passes first time more often: 78.2% for the Piaggio Vespa LX 125 vs 75.8% for the Honda PCX 125.

See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.