SYM JET 14 125 AC E5

125cc Petrol Class 1

#4298 of 5426 overall #40 of 78 SYMs #272 of 412 scooter bikes

75.0%

first-time pass rate

18.6%

failed outright

8,634

median miles at test

553

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2024–2025

The JET 14 125 AC E5's first-time pass rate has held steady since 2024 (73.7% → 74.7%).

Pass rate by mileage

how the JET 14 125 AC E5's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage JET 14 125 AC E5 passes first time 80.3% of the time; by 20k that's 70.0%.

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 JET 14 125 AC E5

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lamps and reflectors	79	35	6.9×
brakes	45	19.9	1.5×
tyres	44	19.5	10.9×
audible warning (Horn)	17	7.5	16.8×
steering	16	7.1	5.7×
suspension	16	7.1	3.4×
structure and attachments	6	2.7	1.6×
Identification of the vehicle	3	1.3	2.3×

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 JET 14 125 AC E5 beats 0 of its 4 closest rivals (PIAGGIO VESPA, HONDA PCX 125, HONDA Vision 110).

PIAGGIO VESPA 80.7% pass · 287k tests HONDA PCX 125 81.1% pass · 88.6k tests HONDA Vision 110 78.2% pass · 50.6k tests YAMAHA NMAX 125 82.2% pass · 33.8k 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 JET 14 125 AC E5.

Pass rate by registration year

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

Best year to buy used: 2021 (75.5% pass). Weakest: 2022 (74.2%).

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.

SYM JET 14 125 AC E5 FAQ

answers computed from the data above · terms in the glossary

Is the SYM JET 14 125 AC E5 reliable?

The SYM JET 14 125 AC E5 is about average for its class: 75.0% of its 553 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4298 of 5426 models.

What does a JET 14 125 AC E5 fail its MOT on most?

lamps and reflectors — 35% of all defects recorded against failed JET 14 125 AC E5 tests.

How many miles will a JET 14 125 AC E5 last?

The median JET 14 125 AC E5 shows 8,634 miles at test, and examples around 20k miles still pass 70.0% of the time — mileage alone rarely kills one.