Motor Hispania RX50 vs Piaggio NRG

The Piaggio NRG passes its MOT first time more often than the Motor Hispania RX50: 65.5% vs 51.0%, a 14.5-point lead.

MOT reliability, side by side

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

Metric	Motor Hispania RX50	Piaggio NRG
First-time pass rate	51.0%	65.5%
Outright fail rate	40.1%	27.4%
Vs comparable bikes (age & mileage adjusted)	-20.9 pts	-6.0 pts
Engine size	49cc	49cc
Rank among all models	#5389 of 5428	#4992 of 5428
Median miles at test	11,106	9,874
MOT tests analysed	716	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	Motor Hispania RX50	Piaggio NRG
Lights & signalling	31.1%	15.0%
Steering & suspension	26.3%	15.5%
Brakes	17.3%	10.2%
Tyres & wheels	5.2%	4.7%
Drive system	9.4%	0.0%
Structure & body	6.4%	2.5%
Fuel & exhaust	3.6%	3.8%

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	Motor Hispania RX50	Piaggio NRG
2007	48.4%	63.9%
2008	50.0%	65.2%
2009	48.1%	62.2%
2010	46.9%	63.2%
2011	47.5%	63.9%
2012	46.5%	63.4%
2013	39.4%	64.1%
2014	51.2%	67.4%

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	Motor Hispania RX50	Piaggio NRG
0k-10k miles	54.7%	71.3%
10k-20k miles	48.5%	60.6%
20k-30k miles	46.4%	55.7%

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

Motor Hispania RX50 vs Piaggio NRG FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Motor Hispania RX50 or the Piaggio NRG?

The Piaggio NRG passes its MOT first time more often than the Motor Hispania RX50: 65.5% vs 51.0%, a 14.5-point lead. Adjusted for age, mileage and test class, the Piaggio NRG still comes out ahead: -20.9 points vs comparable bikes for the Motor Hispania RX50, -6.0 for the Piaggio NRG. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Motor Hispania RX50 fail its MOT on most?

Lights & signalling: 31.1% of Motor Hispania RX50 MOT tests failed on it, then steering & suspension (26.3%).

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 Motor Hispania RX50 or the Piaggio NRG?

At 20k-30k miles the Piaggio NRG passes first time more often: 46.4% for the Motor Hispania RX50 vs 55.7% for the Piaggio NRG.

MOTOR HISPANIA RX50 51.0% pass · 716 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.