BIKERELIABILITY Reg check
League table/ Sukida SK 50 QT-9 Roma/vs Peugeot Vivacity
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Sukida SK 50 QT-9 Roma vs Peugeot Vivacity

The Peugeot Vivacity passes its MOT first time more often than the Sukida SK 50 QT-9 Roma: 70.4% vs 67.9%, a 2.5-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Sukida SK 50 QT-9 Roma Peugeot Vivacity
First-time pass rate 67.9% 70.4%
Outright fail rate 23.9% 21.7%
Vs comparable bikes (age & mileage adjusted) -8.8 pts -0.9 pts
Engine size 50cc 49cc
Rank among all models #4861 of 5428 #4699 of 5428
Median miles at test 3,618 11,162
MOT tests analysed 327 29,731
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.

"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.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year Sukida SK 50 QT-9 Roma Peugeot Vivacity
2010 51.5% 69.9%
2011 68.2% 67.2%
2012 62.2% 66.2%
2013 81.3% 68.2%
2014 71.1% 66.3%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

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