Aprilia SR 50 R vs Peugeot Speedfight

The Peugeot Speedfight passes its MOT first time more often than the Aprilia SR 50 R: 65.2% vs 62.5%, a 2.7-point lead.

MOT reliability, side by side

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

Metric	Aprilia SR 50 R	Peugeot Speedfight
First-time pass rate	62.5%	65.2%
Outright fail rate	27.5%	26.3%
Vs comparable bikes (age & mileage adjusted)	-8.6 pts	-5.3 pts
Engine size	49cc	49cc
Rank among all models	#5133 of 5428	#5008 of 5428
Median miles at test	9,353	13,547
MOT tests analysed	2,273	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 SR 50 R	Peugeot Speedfight
Lights & signalling	16.5%	15.4%
Steering & suspension	13.9%	12.9%
Brakes	8.8%	10.8%
Tyres & wheels	4.2%	4.7%
Fuel & exhaust	4.5%	2.5%
Structure & body	4.1%	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 SR 50 R	Peugeot Speedfight
2016	59.3%	63.0%
2017	61.2%	68.5%
2018	70.9%	69.6%
2019	67.6%	68.9%
2020	73.3%	72.0%
2021	55.6%	71.0%
2022	71.1%	71.7%
2023	64.3%	71.0%

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 SR 50 R	Peugeot Speedfight
0k-10k miles	67.6%	73.1%
10k-20k miles	58.0%	63.3%
20k-30k miles	56.4%	58.2%

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

Aprilia SR 50 R vs Peugeot Speedfight FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Aprilia SR 50 R or the Peugeot Speedfight?

The Peugeot Speedfight passes its MOT first time more often than the Aprilia SR 50 R: 65.2% vs 62.5%, a 2.7-point lead. Adjusted for age, mileage and test class, the Peugeot Speedfight still comes out ahead: -8.6 points vs comparable bikes for the Aprilia SR 50 R, -5.3 for the Peugeot Speedfight. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Aprilia SR 50 R fail its MOT on most?

Lights & signalling: 16.5% of Aprilia SR 50 R MOT tests failed on it, then steering & suspension (13.9%).

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 SR 50 R or the Peugeot Speedfight?

At 20k-30k miles the Peugeot Speedfight passes first time more often: 56.4% for the Aprilia SR 50 R vs 58.2% for the Peugeot Speedfight.

APRILIA SR 50 R 62.5% pass · 2,273 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.