Moto Roma Roadrunner 50 vs Peugeot Speedfight

The Moto Roma Roadrunner 50 passes its MOT first time more often than the Peugeot Speedfight: 72.3% vs 65.2%, a 7.1-point lead.

MOT reliability, side by side

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

Metric	Moto Roma Roadrunner 50	Peugeot Speedfight
First-time pass rate	72.3%	65.2%
Outright fail rate	20.0%	26.3%
Vs comparable bikes (age & mileage adjusted)	-1.5 pts	-5.3 pts
Engine size	49cc	49cc
Rank among all models	#4556 of 5428	#5008 of 5428
Median miles at test	6,860	13,547
MOT tests analysed	701	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	Moto Roma Roadrunner 50	Peugeot Speedfight
Lights & signalling	9.4%	15.4%
Steering & suspension	8.1%	12.9%
Brakes	8.1%	10.8%
Tyres & wheels	3.6%	4.7%
Fuel & exhaust	2.6%	2.5%
Structure & body	0.7%	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	Moto Roma Roadrunner 50	Peugeot Speedfight
2006	75.4%	68.0%
2007	74.5%	65.8%
2008	73.3%	63.7%
2009	68.4%	62.9%
2010	71.2%	62.0%
2011	58.5%	60.9%
2012	82.5%	61.2%

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	Moto Roma Roadrunner 50	Peugeot Speedfight
0k-10k miles	75.1%	73.1%
10k-20k miles	64.5%	63.3%

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

Moto Roma Roadrunner 50 vs Peugeot Speedfight FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Moto Roma Roadrunner 50 or the Peugeot Speedfight?

The Moto Roma Roadrunner 50 passes its MOT first time more often than the Peugeot Speedfight: 72.3% vs 65.2%, a 7.1-point lead. Adjusted for age, mileage and test class, the Moto Roma Roadrunner 50 still comes out ahead: -1.5 points vs comparable bikes for the Moto Roma Roadrunner 50, -5.3 for the Peugeot Speedfight. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Moto Roma Roadrunner 50 fail its MOT on most?

Lights & signalling: 9.4% of Moto Roma Roadrunner 50 MOT tests failed on it, then steering & suspension (8.1%).

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%).

MOTO ROMA ROADRUNNER 50 72.3% pass · 701 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.