BIKERELIABILITY Reg check
League table/ Piaggio PX200/vs Lambretta LI150
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Piaggio PX200 vs Lambretta LI150

The Lambretta LI150 passes its MOT first time more often than the Piaggio PX200: 88.8% vs 84.9%, a 3.9-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Piaggio PX200 Lambretta LI150
First-time pass rate 84.9% 88.8%
Outright fail rate 8.3% 5.9%
Vs comparable bikes (age & mileage adjusted) +10.3 pts +6.4 pts
Engine size 198cc 150cc
Rank among all models #2516 of 5428 #1332 of 5428
Median miles at test 11,302 2,944
MOT tests analysed 5,109 19,294
Most common failure lighting and signalling lighting and signalling

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 PX200 Lambretta LI150
Lights & signalling 4.5% 3.3%
Steering & suspension 2.1% 1.8%
Brakes 1.6% 2.1%
Tyres & wheels 2.1% 0.9%
Structure & body 0.5% 0.2%
Fuel & exhaust 0.3% 0.3%

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 PX200 Lambretta LI150
2018 87.2% 90.2%
2019 88.0% 92.6%
2020 85.5% 93.0%
2021 86.8% 94.3%
2022 89.5% 90.0%
2023 84.5% 90.8%
2024 88.4% 95.9%
2025 86.9% 97.1%

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 PX200 Lambretta LI150
0k-10k miles 85.7% 88.8%
10k-20k miles 84.7% 89.8%
20k-30k miles 83.2% 87.0%
30k-40k miles 83.9% 88.2%
40k-50k miles 83.9% 88.8%
50k-60k miles 85.4% 91.7%

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

Piaggio PX200 vs Lambretta LI150 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Piaggio PX200 or the Lambretta LI150?

The Lambretta LI150 passes its MOT first time more often than the Piaggio PX200: 88.8% vs 84.9%, a 3.9-point lead. Adjusted for age, mileage and test class, the Piaggio PX200 still comes out ahead: +10.3 points vs comparable bikes for the Piaggio PX200, +6.4 for the Lambretta LI150. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Piaggio PX200 fail its MOT on most?

Lights & signalling: 4.5% of Piaggio PX200 MOT tests failed on it, then steering & suspension (2.1%).

What does the Lambretta LI150 fail its MOT on most?

Lights & signalling: 3.3% of Lambretta LI150 MOT tests failed on it, then brakes (2.1%).

Which holds up better at high mileage, the Piaggio PX200 or the Lambretta LI150?

At 50k-60k miles the Lambretta LI150 passes first time more often: 85.4% for the Piaggio PX200 vs 91.7% for the Lambretta LI150.

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