BIKERELIABILITY Reg check
League table/ Jonway Madness/vs Peugeot Speedfight
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Jonway Madness vs Peugeot Speedfight

The Peugeot Speedfight passes its MOT first time more often than the Jonway Madness: 65.2% vs 56.0%, a 9.2-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Jonway Madness Peugeot Speedfight
First-time pass rate 56.0% 65.2%
Outright fail rate 34.9% 26.3%
Vs comparable bikes (age & mileage adjusted) -18.5 pts -5.3 pts
Engine size 50cc 49cc
Median miles at test 5,496 13,547
MOT tests analysed 175 83,728
Most common failure steering and suspension 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.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

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