Baotian BT 49 vs Peugeot Vivacity

The Peugeot Vivacity passes its MOT first time more often than the Baotian BT 49: 70.4% vs 67.6%, a 2.8-point lead.

MOT reliability, side by side

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

Metric	Baotian BT 49	Peugeot Vivacity
First-time pass rate	67.6%	70.4%
Outright fail rate	24.2%	21.7%
Vs comparable bikes (age & mileage adjusted)	-8.2 pts	-0.9 pts
Engine size	49cc	49cc
Rank among all models	#4877 of 5428	#4699 of 5428
Median miles at test	4,363	11,162
MOT tests analysed	1,236	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	Peugeot Vivacity
Lights & signalling	13.8%	11.5%
Steering & suspension	11.6%	10.5%
Brakes	7.6%	8.6%
Tyres & wheels	5.5%	4.4%
Structure & body	4.4%	1.6%
Fuel & exhaust	1.4%	1.9%

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	Peugeot Vivacity
2018	69.2%	74.1%
2019	72.2%	72.0%
2020	68.2%	71.5%
2021	67.2%	73.6%
2022	68.9%	71.4%
2023	68.9%	72.7%
2024	66.0%	74.7%
2025	68.3%	73.2%

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	Baotian BT 49	Peugeot Vivacity
0k-10k miles	68.7%	76.6%
10k-20k miles	59.0%	67.9%

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

Baotian BT 49 vs Peugeot Vivacity FAQ

answers computed from the data above · terms in the glossary

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

The Peugeot Vivacity passes its MOT first time more often than the Baotian BT 49: 70.4% vs 67.6%, a 2.8-point lead. Adjusted for age, mileage and test class, the Peugeot Vivacity still comes out ahead: -8.2 points vs comparable bikes for the Baotian BT 49, -0.9 for the Peugeot Vivacity. An MOT checks roadworthiness items, not engine or gearbox internals.

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

Lights & signalling: 13.8% of Baotian BT 49 MOT tests failed on it, then steering & suspension (11.6%).

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 67.6% pass · 1,236 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.