Rieju RR 50 vs Peugeot Speedfight

The Peugeot Speedfight passes its MOT first time more often than the Rieju RR 50: 65.2% vs 48.5%, a 16.7-point lead.

MOT reliability, side by side

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

Metric	Rieju RR 50	Peugeot Speedfight
First-time pass rate	48.5%	65.2%
Outright fail rate	43.2%	26.3%
Vs comparable bikes (age & mileage adjusted)	-23.6 pts	-5.3 pts
Engine size	49cc	49cc
Rank among all models	#5403 of 5428	#5008 of 5428
Median miles at test	9,253	13,547
MOT tests analysed	600	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	Rieju RR 50	Peugeot Speedfight
Lights & signalling	29%	15.4%
Steering & suspension	29.3%	12.9%
Brakes	16.3%	10.8%
Tyres & wheels	7.7%	4.7%
Drive system	11%	0.0%
Fuel & exhaust	6%	2.5%
Structure & body	6.2%	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	Rieju RR 50	Peugeot Speedfight
2007	36.0%	65.8%
2008	42.9%	63.7%
2009	50.0%	62.9%
2010	45.8%	62.0%
2011	40.8%	60.9%
2012	43.6%	61.2%
2013	47.5%	61.2%
2014	58.1%	61.7%

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	Rieju RR 50	Peugeot Speedfight
0k-10k miles	53.9%	73.1%
10k-20k miles	39.4%	63.3%
20k-30k miles	45.3%	58.2%

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

Rieju RR 50 vs Peugeot Speedfight FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Rieju RR 50 or the Peugeot Speedfight?

The Peugeot Speedfight passes its MOT first time more often than the Rieju RR 50: 65.2% vs 48.5%, a 16.7-point lead. Adjusted for age, mileage and test class, the Peugeot Speedfight still comes out ahead: -23.6 points vs comparable bikes for the Rieju RR 50, -5.3 for the Peugeot Speedfight. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Rieju RR 50 fail its MOT on most?

Steering & suspension: 29.3% of Rieju RR 50 MOT tests failed on it, then lights & signalling (29%).

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 Rieju RR 50 or the Peugeot Speedfight?

At 20k-30k miles the Peugeot Speedfight passes first time more often: 45.3% for the Rieju RR 50 vs 58.2% for the Peugeot Speedfight.

RIEJU RR 50 48.5% pass · 600 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.