Derbi X-Race 50 R vs Piaggio Zip

The Piaggio Zip passes its MOT first time more often than the Derbi X-Race 50 R — 71.3% vs 44.7%, a 26.6-point lead.

MOT reliability, side by side

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

Metric	Derbi X-Race 50 R	Piaggio Zip
First-time pass rate	44.7%	71.3%
Outright fail rate	40.2%	20.4%
Median miles at test	9,190	8,882
MOT tests analysed	132	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.

DERBI X-RACE 50 R 44.7% pass · 132 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.