Sinnis ZN 50 QT-56 Encanto vs Piaggio NRG

The Sinnis ZN 50 QT-56 Encanto passes its MOT first time more often than the Piaggio NRG: 74.2% vs 65.5%, a 8.7-point lead.

MOT reliability, side by side

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

Metric	Sinnis ZN 50 QT-56 Encanto	Piaggio NRG
First-time pass rate	74.2%	65.5%
Outright fail rate	17.7%	27.4%
Vs comparable bikes (age & mileage adjusted)	-3.8 pts	-6.0 pts
Engine size	50cc	49cc
Rank among all models	#4380 of 5428	#4992 of 5428
Median miles at test	2,270	9,874
MOT tests analysed	271	40,458
Most common failure	lamps and reflectors	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	Sinnis ZN 50 QT-56 Encanto	Piaggio NRG
2022	67.4%	74.8%
2023	71.9%	77.5%
2024	76.8%	81.9%
2025	75.8%	77.1%

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

SINNIS ZN 50 QT-56 ENCANTO 74.2% pass · 271 tests PIAGGIO NRG 65.5% pass · 40.5k tests

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