Derbi X-Race 50 SM vs Peugeot Speedfight

The Peugeot Speedfight passes its MOT first time more often than the Derbi X-Race 50 SM — 65.2% vs 53.2%, a 12.0-point lead.

MOT reliability, side by side

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

Metric	Derbi X-Race 50 SM	Peugeot Speedfight
First-time pass rate	53.2%	65.2%
Outright fail rate	34.6%	26.3%
Median miles at test	9,844	13,547
MOT tests analysed	327	83,728
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 SM 53.2% pass · 327 tests PEUGEOT SPEEDFIGHT 65.2% pass · 83.7k tests

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