LONGJIA LJ

50cc Petrol Class 1

#4929 of 5426 overall #1 of 4 LONGJIAs #293 of 455 moped bikes

66.6%

first-time pass rate

24.8%

failed outright

6,358

median miles at test

2,957

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2017–2025

The LJ's first-time pass rate has risen 8.7 points since 2017, 56.3% to 65.0%.

Pass rate by mileage

how the LJ's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage LJ passes first time 66.1% of the time; by 20k that's 60.3%.

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a LJ

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lamps and reflectors	830	42.2	10.1×
brakes	299	15.2	1.7×
steering	216	11	15.7×
suspension	168	8.5	6.3×
tyres	155	7.9	6.8×
structure and attachments	142	7.2	5.8×
audible warning (Horn)	54	2.7	10.0×
lighting and signalling	52	2.6	0.3×
steering and suspension	33	1.7	0.2×
Identification of the vehicle	18	0.9	2.6×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the LJ beats 2 of its 4 closest rivals (PEUGEOT SPEEDFIGHT, PIAGGIO ZIP, PIAGGIO NRG).

PEUGEOT SPEEDFIGHT 65.2% pass · 83.7k tests PIAGGIO ZIP 71.3% pass · 79.0k tests PIAGGIO NRG 65.5% pass · 40.5k tests PEUGEOT VIVACITY 70.4% pass · 29.7k tests

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the LJ.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2011 (77.8% pass). Weakest: 2012 (57.7%).

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.

LONGJIA LJ FAQ

answers computed from the data above · terms in the glossary

Is the LONGJIA LJ reliable?

The LONGJIA LJ is less reliable than average for its class: 66.6% of its 2,957 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4929 of 5426 models.

What does a LJ fail its MOT on most?

lamps and reflectors — 42% of all defects recorded against failed LJ tests.

What is the best year of LJ to buy used?

By first-time pass rate, 2011-registered examples do best (77.8%) and 2012 worst (57.7%). Condition and history still trump the year.

How many miles will a LJ last?

The median LJ shows 6,358 miles at test, and examples around 20k miles still pass 60.3% of the time — mileage alone rarely kills one.