SYM JET 50 BASIX

49cc Petrol Class 1

#4531 of 5426 overall #54 of 78 SYMs #179 of 455 moped bikes

72.6%

first-time pass rate

17.5%

failed outright

13,897

median miles at test

405

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2010–2017

The JET 50 BASIX's first-time pass rate has fallen 23.8 points since 2010, 83.8% to 60.0%.

Pass rate by mileage

how the JET 50 BASIX's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage JET 50 BASIX passes first time 79.8% of the time; by 20k that's 59.5%.

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 50 BASIX

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	57	32.9
brakes	34	19.7
steering and suspension	23	13.3
lamps and reflectors	19	11
fuel and exhaust	16	9.2
tyres and wheels	11	6.4
structure and attachments	5	2.9
suspension	4	2.3
body and structure	2	1.2
audible warning (Horn)	2	1.2

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the JET 50 BASIX beats 4 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 JET 50 BASIX.

Pass rate by registration year

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

Best year to buy used: 2009 (75.7% pass). Weakest: 2008 (69.5%).

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.