Longjia LJ vs Peugeot Vivacity

The Peugeot Vivacity passes its MOT first time more often than the Longjia LJ: 70.4% vs 66.6%, a 3.8-point lead.

MOT reliability, side by side

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

Metric	Longjia LJ	Peugeot Vivacity
First-time pass rate	66.6%	70.4%
Outright fail rate	24.8%	21.7%
Vs comparable bikes (age & mileage adjusted)	-9.3 pts	-0.9 pts
Engine size	50cc	49cc
Rank among all models	#4931 of 5428	#4699 of 5428
Median miles at test	6,358	11,162
MOT tests analysed	2,957	29,731
Most common failure	lamps and reflectors	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	Longjia LJ	Peugeot Vivacity
Lights & signalling	16.8%	11.5%
Steering & suspension	10.7%	10.5%
Brakes	7.2%	8.6%
Tyres & wheels	4.9%	4.4%
Structure & body	4.0%	1.6%
Fuel & exhaust	0.0%	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	Longjia LJ	Peugeot Vivacity
2018	65.2%	74.1%
2019	65.3%	72.0%
2020	73.0%	71.5%
2021	66.6%	73.6%
2022	62.8%	71.4%
2023	65.7%	72.7%
2024	65.1%	74.7%
2025	65.0%	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	Longjia LJ	Peugeot Vivacity
0k-10k miles	66.1%	76.6%
10k-20k miles	60.8%	67.9%
20k-30k miles	60.3%	60.8%

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

Longjia LJ vs Peugeot Vivacity FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Longjia LJ or the Peugeot Vivacity?

The Peugeot Vivacity passes its MOT first time more often than the Longjia LJ: 70.4% vs 66.6%, a 3.8-point lead. Adjusted for age, mileage and test class, the Peugeot Vivacity still comes out ahead: -9.3 points vs comparable bikes for the Longjia LJ, -0.9 for the Peugeot Vivacity. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Longjia LJ fail its MOT on most?

Lights & signalling: 16.8% of Longjia LJ MOT tests failed on it, then steering & suspension (10.7%).

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%).

Which holds up better at high mileage, the Longjia LJ or the Peugeot Vivacity?

They are level: at 20k-30k miles the Longjia LJ passes 60.3% first time and the Peugeot Vivacity 60.8%.

LONGJIA LJ 66.6% pass · 2,957 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.