Vespa GS160 vs Piaggio PX 125 (vespa)

The Vespa GS160 passes its MOT first time more often than the Piaggio PX 125 (vespa) — 85.9% vs 81.0%, a 4.9-point lead.

MOT reliability, side by side

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

Metric	Vespa GS160	Piaggio PX 125 (vespa)
First-time pass rate	85.9%	81.0%
Outright fail rate	5.3%	11.3%
Median miles at test	16,948	9,868
MOT tests analysed	262	33,171
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.

VESPA GS160 85.9% pass · 262 tests PIAGGIO PX 125 (VESPA) 81.0% pass · 33.2k tests

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