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

Data as of: DVSA MOT results to 2025

Peugeot Speedfight vs Piaggio Zip

The Piaggio Zip passes its MOT first time more often than the Peugeot Speedfight: 71.3% vs 65.2%, a 6.1-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Peugeot Speedfight Piaggio Zip
First-time pass rate 65.2% 71.3%
Outright fail rate 26.3% 20.4%
Vs comparable bikes (age & mileage adjusted) -5.3 pts -1.0 pts
Engine size 49cc 49cc
Rank among all models #5008 of 5428 #4631 of 5428
Median miles at test 13,547 8,882
MOT tests analysed 83,728 78,993
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 Peugeot Speedfight Piaggio Zip
Lights & signalling 15.4% 11.9%
Steering & suspension 12.9% 9.2%
Brakes 10.8% 6.5%
Tyres & wheels 4.7% 4.0%
Fuel & exhaust 2.5% 2.5%
Structure & body 2.3% 1.6%

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 Peugeot Speedfight Piaggio Zip
2018 69.6% 72.9%
2019 68.9% 73.0%
2020 72.0% 73.1%
2021 71.0% 73.3%
2022 71.7% 74.5%
2023 71.0% 74.1%
2024 72.9% 73.4%
2025 74.0% 76.2%

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 Peugeot Speedfight Piaggio Zip
0k-10k miles 73.1% 75.2%
10k-20k miles 63.3% 66.7%
20k-30k miles 58.2% 64.4%
30k-40k miles 56.6% 64.5%
40k-50k miles 58.2% 65.4%
50k-60k miles 65.5% 67.1%

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

Peugeot Speedfight vs Piaggio Zip FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Peugeot Speedfight or the Piaggio Zip?

The Piaggio Zip passes its MOT first time more often than the Peugeot Speedfight: 71.3% vs 65.2%, a 6.1-point lead. Adjusted for age, mileage and test class, the Piaggio Zip still comes out ahead: -5.3 points vs comparable bikes for the Peugeot Speedfight, -1.0 for the Piaggio Zip. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Peugeot Speedfight fail its MOT on most?

Lights & signalling: 15.4% of Peugeot Speedfight MOT tests failed on it, then steering & suspension (12.9%).

What does the Piaggio Zip fail its MOT on most?

Lights & signalling: 11.9% of Piaggio Zip MOT tests failed on it, then steering & suspension (9.2%).

Which holds up better at high mileage, the Peugeot Speedfight or the Piaggio Zip?

At 50k-60k miles the Piaggio Zip passes first time more often: 65.5% for the Peugeot Speedfight vs 67.1% for the Piaggio Zip.

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