BIKERELIABILITY Reg check
League table/ Cpi Supercross/vs Piaggio NRG
Head-to-head · 2005–2025

Cpi Supercross vs Piaggio NRG

The Piaggio NRG passes its MOT first time more often than the Cpi Supercross — 65.5% vs 60.6%, a 4.9-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Cpi Supercross Piaggio NRG
First-time pass rate 60.6% 65.5%
Outright fail rate 31.4% 27.4%
Median miles at test 6,080 9,874
MOT tests analysed 137 40,458
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.

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