Yamaha NS vs Piaggio Zip

The Piaggio Zip passes its MOT first time more often than the Yamaha NS: 71.3% vs 69.5%, a 1.8-point lead.

MOT reliability, side by side

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

Metric	Yamaha NS	Piaggio Zip
First-time pass rate	69.5%	71.3%
Outright fail rate	20.4%	20.4%
Median miles at test	10,013	8,882
MOT tests analysed	3,337	78,993
Most common failure	lamps and reflectors	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.

YAMAHA NS 69.5% pass · 3,337 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.