Aprilia Mojito 50 Custom vs Piaggio NRG

The Aprilia Mojito 50 Custom passes its MOT first time more often than the Piaggio NRG: 68.8% vs 65.5%, a 3.3-point lead.

MOT reliability, side by side

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

Metric	Aprilia Mojito 50 Custom	Piaggio NRG
First-time pass rate	68.8%	65.5%
Outright fail rate	19.8%	27.4%
Vs comparable bikes (age & mileage adjusted)	-4.0 pts	-6.0 pts
Engine size	49cc	49cc
Rank among all models	#4808 of 5428	#4992 of 5428
Median miles at test	7,502	9,874
MOT tests analysed	972	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.

"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.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better

Component	Aprilia Mojito 50 Custom	Piaggio NRG
Lights & signalling	12.7%	15.0%
Steering & suspension	4.5%	15.5%
Brakes	6.1%	10.2%
Tyres & wheels	4.6%	4.7%
Fuel & exhaust	3.2%	3.8%
Structure & body	1.2%	2.5%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested

Test year	Aprilia Mojito 50 Custom	Piaggio NRG
2010	71.4%	63.2%
2011	67.5%	63.9%
2012	70.8%	63.4%
2013	73.3%	64.1%
2014	59.4%	67.4%
2015	60.0%	68.8%
2016	61.3%	68.0%
2017	69.2%	72.0%

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

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test

Mileage	Aprilia Mojito 50 Custom	Piaggio NRG
0k-10k miles	74.3%	71.3%
10k-20k miles	60.3%	60.6%
20k-30k miles	50.0%	55.7%

Bands with fewer than 30 tests for either bike are left out.

Aprilia Mojito 50 Custom vs Piaggio NRG FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Aprilia Mojito 50 Custom or the Piaggio NRG?

The Aprilia Mojito 50 Custom passes its MOT first time more often than the Piaggio NRG: 68.8% vs 65.5%, a 3.3-point lead. Adjusted for age, mileage and test class, the Aprilia Mojito 50 Custom still comes out ahead: -4.0 points vs comparable bikes for the Aprilia Mojito 50 Custom, -6.0 for the Piaggio NRG. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Aprilia Mojito 50 Custom fail its MOT on most?

Lights & signalling: 12.7% of Aprilia Mojito 50 Custom MOT tests failed on it, then brakes (6.1%).

What does the Piaggio NRG fail its MOT on most?

Steering & suspension: 15.5% of Piaggio NRG MOT tests failed on it, then lights & signalling (15.0%).

Which holds up better at high mileage, the Aprilia Mojito 50 Custom or the Piaggio NRG?

At 20k-30k miles the Piaggio NRG passes first time more often: 50.0% for the Aprilia Mojito 50 Custom vs 55.7% for the Piaggio NRG.

APRILIA MOJITO 50 CUSTOM 68.8% pass · 972 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.