Baotian BT 49 QT-9 vs Peugeot Vivacity

The Peugeot Vivacity passes its MOT first time more often than the Baotian BT 49 QT-9: 70.4% vs 64.9%, a 5.5-point lead.

MOT reliability, side by side

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

Metric	Baotian BT 49 QT-9	Peugeot Vivacity
First-time pass rate	64.9%	70.4%
Outright fail rate	26.8%	21.7%
Vs comparable bikes (age & mileage adjusted)	-10.6 pts	-0.9 pts
Engine size	49cc	49cc
Rank among all models	#5021 of 5428	#4699 of 5428
Median miles at test	4,692	11,162
MOT tests analysed	2,409	29,731
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 49 QT-9	Peugeot Vivacity
Lights & signalling	16.6%	11.5%
Steering & suspension	10.6%	10.5%
Brakes	9.0%	8.6%
Tyres & wheels	8.4%	4.4%
Fuel & exhaust	1.9%	1.9%
Structure & body	1.4%	1.6%

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 49 QT-9	Peugeot Vivacity
2011	61.8%	67.2%
2012	63.3%	66.2%
2013	62.2%	68.2%
2014	61.6%	66.3%
2015	74.0%	68.7%
2016	69.9%	67.8%
2017	71.4%	71.8%
2018	73.5%	74.1%

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	Baotian BT 49 QT-9	Peugeot Vivacity
0k-10k miles	65.6%	76.6%
10k-20k miles	60.7%	67.9%

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

Baotian BT 49 QT-9 vs Peugeot Vivacity FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Baotian BT 49 QT-9 or the Peugeot Vivacity?

The Peugeot Vivacity passes its MOT first time more often than the Baotian BT 49 QT-9: 70.4% vs 64.9%, a 5.5-point lead. Adjusted for age, mileage and test class, the Peugeot Vivacity still comes out ahead: -10.6 points vs comparable bikes for the Baotian BT 49 QT-9, -0.9 for the Peugeot Vivacity. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Baotian BT 49 QT-9 fail its MOT on most?

Lights & signalling: 16.6% of Baotian BT 49 QT-9 MOT tests failed on it, then steering & suspension (10.6%).

What does the Peugeot Vivacity fail its MOT on most?

Lights & signalling: 11.5% of Peugeot Vivacity MOT tests failed on it, then steering & suspension (10.5%).

BAOTIAN BT 49 QT-9 64.9% pass · 2,409 tests PEUGEOT VIVACITY 70.4% pass · 29.7k tests

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