Pgo PMX vs Piaggio Zip

The Pgo PMX passes its MOT first time more often than the Piaggio Zip: 71.4% vs 71.3%, a 0.1-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025

Metric	Pgo PMX	Piaggio Zip
First-time pass rate	71.4%	71.3%
Outright fail rate	18.4%	20.4%
Vs comparable bikes (age & mileage adjusted)	-1.4 pts	-1.0 pts
Engine size	49cc	49cc
Median miles at test	7,603	8,882
MOT tests analysed	147	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.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test

Mileage	Pgo PMX	Piaggio Zip
0k-10k miles	76.2%	75.2%
10k-20k miles	61.3%	66.7%

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

PGO PMX 71.4% pass · 147 tests PIAGGIO ZIP 71.3% pass · 79.0k tests

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