Aprilia MX50 vs Peugeot Speedfight

The Peugeot Speedfight passes its MOT first time more often than the Aprilia MX50: 65.2% vs 53.1%, a 12.1-point lead.

MOT reliability, side by side

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

Metric	Aprilia MX50	Peugeot Speedfight
First-time pass rate	53.1%	65.2%
Outright fail rate	37.1%	26.3%
Vs comparable bikes (age & mileage adjusted)	-17.5 pts	-5.3 pts
Engine size	50cc	49cc
Rank among all models	#5359 of 5428	#5008 of 5428
Median miles at test	14,390	13,547
MOT tests analysed	951	83,728
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 MX50	Peugeot Speedfight
Lights & signalling	29.2%	15.4%
Steering & suspension	17.4%	12.9%
Brakes	13.8%	10.8%
Drive system	10.3%	0.0%
Tyres & wheels	5.5%	4.7%
Fuel & exhaust	4.3%	2.5%
Structure & body	3.2%	2.3%

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 MX50	Peugeot Speedfight
2009	51.4%	62.9%
2010	51.2%	62.0%
2011	48.1%	60.9%
2012	46.4%	61.2%
2013	46.2%	61.2%
2014	52.1%	61.7%
2015	55.8%	64.4%
2016	66.7%	63.0%

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 MX50	Peugeot Speedfight
0k-10k miles	57.3%	73.1%
10k-20k miles	51.0%	63.3%
20k-30k miles	54.2%	58.2%
30k-40k miles	44.2%	56.6%

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

Aprilia MX50 vs Peugeot Speedfight FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Aprilia MX50 or the Peugeot Speedfight?

The Peugeot Speedfight passes its MOT first time more often than the Aprilia MX50: 65.2% vs 53.1%, a 12.1-point lead. Adjusted for age, mileage and test class, the Peugeot Speedfight still comes out ahead: -17.5 points vs comparable bikes for the Aprilia MX50, -5.3 for the Peugeot Speedfight. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Aprilia MX50 fail its MOT on most?

Lights & signalling: 29.2% of Aprilia MX50 MOT tests failed on it, then steering & suspension (17.4%).

What does the Peugeot Speedfight fail its MOT on most?

Lights & signalling: 15.4% of Peugeot Speedfight MOT tests failed on it, then steering & suspension (12.9%).

Which holds up better at high mileage, the Aprilia MX50 or the Peugeot Speedfight?

At 30k-40k miles the Peugeot Speedfight passes first time more often: 44.2% for the Aprilia MX50 vs 56.6% for the Peugeot Speedfight.

APRILIA MX50 53.1% pass · 951 tests PEUGEOT SPEEDFIGHT 65.2% pass · 83.7k tests

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