Ariel Leader vs Piaggio PX 200 E

The Ariel Leader passes its MOT first time more often than the Piaggio PX 200 E — 92.7% vs 86.5%, a 6.2-point lead.

MOT reliability, side by side

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

Metric	Ariel Leader	Piaggio PX 200 E
First-time pass rate	92.7%	86.5%
Outright fail rate	3.0%	7.2%
Median miles at test	15,045	11,382
MOT tests analysed	1,135	28,415
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.

ARIEL LEADER 92.7% pass · 1,135 tests PIAGGIO PX 200 E 86.5% pass · 28.4k tests

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