BIKERELIABILITY Reg check
League table/ Malaguti Phantom/vs Piaggio Zip
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Malaguti Phantom vs Piaggio Zip

The Piaggio Zip passes its MOT first time more often than the Malaguti Phantom: 71.3% vs 64.0%, a 7.3-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Malaguti Phantom Piaggio Zip
First-time pass rate 64.0% 71.3%
Outright fail rate 28.2% 20.4%
Vs comparable bikes (age & mileage adjusted) -8.3 pts -1.0 pts
Engine size 49cc 49cc
Rank among all models #5059 of 5428 #4631 of 5428
Median miles at test 9,238 8,882
MOT tests analysed 2,643 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 Malaguti Phantom Piaggio Zip
Lights & signalling 16.6% 11.9%
Steering & suspension 14.4% 9.2%
Brakes 12.1% 6.5%
Tyres & wheels 5.3% 4.0%
Fuel & exhaust 3.9% 2.5%
Structure & body 2.5% 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 Malaguti Phantom Piaggio Zip
2012 63.6% 69.1%
2013 65.1% 69.7%
2014 65.9% 68.8%
2015 74.7% 69.8%
2016 70.5% 71.0%
2017 75.0% 71.7%
2018 67.6% 72.9%
2019 45.2% 73.0%

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 Malaguti Phantom Piaggio Zip
0k-10k miles 67.7% 75.2%
10k-20k miles 61.4% 66.7%
20k-30k miles 52.6% 64.4%
30k-40k miles 74.5% 64.5%

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

Malaguti Phantom vs Piaggio Zip FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Malaguti Phantom or the Piaggio Zip?

The Piaggio Zip passes its MOT first time more often than the Malaguti Phantom: 71.3% vs 64.0%, a 7.3-point lead. Adjusted for age, mileage and test class, the Piaggio Zip still comes out ahead: -8.3 points vs comparable bikes for the Malaguti Phantom, -1.0 for the Piaggio Zip. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Malaguti Phantom fail its MOT on most?

Lights & signalling: 16.6% of Malaguti Phantom MOT tests failed on it, then steering & suspension (14.4%).

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 Malaguti Phantom or the Piaggio Zip?

At 30k-40k miles the Malaguti Phantom passes first time more often: 74.5% for the Malaguti Phantom vs 64.5% for the Piaggio Zip.

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