Baotian BT 50 QT-11 vs Peugeot Speedfight

The Peugeot Speedfight passes its MOT first time more often than the Baotian BT 50 QT-11: 65.2% vs 64.2%, a 1.0-point lead.

MOT reliability, side by side

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

Metric	Baotian BT 50 QT-11	Peugeot Speedfight
First-time pass rate	64.2%	65.2%
Outright fail rate	26.8%	26.3%
Vs comparable bikes (age & mileage adjusted)	-13.8 pts	-5.3 pts
Engine size	50cc	49cc
Rank among all models	#5049 of 5428	#5008 of 5428
Median miles at test	2,744	13,547
MOT tests analysed	653	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	Baotian BT 50 QT-11	Peugeot Speedfight
Lights & signalling	17.0%	15.4%
Steering & suspension	11.9%	12.9%
Brakes	9.6%	10.8%
Tyres & wheels	6.6%	4.7%
Structure & body	2.0%	2.3%
Fuel & exhaust	1.5%	2.5%

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	Baotian BT 50 QT-11	Peugeot Speedfight
2008	67.4%	63.7%
2009	65.6%	62.9%
2010	59.0%	62.0%
2011	64.0%	60.9%
2012	56.4%	61.2%
2013	66.7%	61.2%
2014	64.5%	61.7%
2015	61.3%	64.4%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Baotian BT 50 QT-11 vs Peugeot Speedfight FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Baotian BT 50 QT-11 or the Peugeot Speedfight?

The Peugeot Speedfight passes its MOT first time more often than the Baotian BT 50 QT-11: 65.2% vs 64.2%, a 1.0-point lead. Adjusted for age, mileage and test class, the Peugeot Speedfight still comes out ahead: -13.8 points vs comparable bikes for the Baotian BT 50 QT-11, -5.3 for the Peugeot Speedfight. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Baotian BT 50 QT-11 fail its MOT on most?

Lights & signalling: 17.0% of Baotian BT 50 QT-11 MOT tests failed on it, then steering & suspension (11.9%).

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%).

BAOTIAN BT 50 QT-11 64.2% pass · 653 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.